On point that a lot of drivers miss, or don't perhaps fully understand is the bigger difference between the forces acting on your car when your brake, and those acting on it when you simply lift off the throttle, and this has a BIG implication as to why you should typically aim to avoid sudden throttle lifts! Bare with me, because this is fairly subtle and perhaps quite adanced, but it's worth knowing! When you brake, the brake pads on all 4 wheels start to create friction with their respective discs, and that friction creates two forces. One force acts to try to slow down the rotation of the wheels, this causes a force to build at the tyre / road contact point in the opposite direction to the direction of rotation (ie if you are travelling forwards and you brake, the force at the tyre is generate pointing backwards, ie slwoing you down) So far, everyone i think understands this. However, it is where that force is REACTED on the body of the car that is the important bit, and that is the second force i mentioned earlier. That second force tries to rotate the uprights and suspension, the bit of the suspension that hold the wheels to the car but allows them to move up and down as well. So those braking forces travel down the suspension members and into the body of the car, the big, heavy bit. Modern suspension design is very, very clever, it uses the forces generated by the tyres in the most appropriate fashion, and for braking, that includes something called "anti-dive" Here, those rotational forces from the upright are pushed into the body at an angle to the ground, and actually act to lift the body upwards (rise it up) as well as push it backwards (slow it down), and because modern suspension is very stiff (even on quite "cooking" cars) that happens very fast,almost instantaneously. As a result, when you use your brakes to slow down, the car suspension works to it's best, keeps the car level, stops it pitching forwards excessively (despite the ability for modern cars to pull nearly 1.5 g on the brakes these days). So what happens when you lift off the accelerator, rather than braking? Here, it's very different. The brakes, out by the wheels are not used, the force opposing the wheels rolling fowards comes not from those brakes, but from the friction and parasitic losses of the engine, referenced through the transmission. And engine friction is a suprisngly large thing (try turning the crank of your engine (when it's off.....) by hand and see how you get on, bet you can't! (or not very much anyway). In fact, a typical level of engine braking, can be as much as -50 Nm at the flywheel. The lower the gear you are in, the greater the torque multiplication to the wheels (same as being in a low gear to accelerate hard using positive engine torque). The important factor is where abouts that negative torque gets reacted into the body, and hence slows down your car. If you think about it, it's obvious, it gets reacted at the powertrain mounting points ie NOT through the suspension. This brings two effects of significance, the lack of anti-dive and an effect called "lag". The anti-dive effect is actually worse, because it's not just a lack of anti-dive, but actually the prescence of positive squat! This is because normally, the car is designed to squat down onto it's driving wheels when you accelerate hard to help those wheels grip under accel and the more powerful your car, the more this effect is there!. So negative engine torque, lift off -decceleration is really bad at causing the car to dive, because anti-anti-squat (!!!) becomes dive! So despite lifting off having at best 20% of the magnitude of decel you would get from braking, it can cause about the same level of dive as a full 1g brake event! And this is where the lag can bite you! Because the powertrain is a noisy, harsh thing it's generally rubber mounted, on really big, squishy soft mounts, designed to stop all the horrible engine firing and mechanical noise from getting into the cabin. So, when you lift, you don't decel straight away, actually it can take nearly a second for the powertrain move and to bottom against those soft mounts. This introduces a lag between your movements on the pedal and the effect on the car. And lag is badm, it causes drivers to over-react or worse still to actually act out-of-phase with the physics of the situation (google "Pilot induced oscilations" for what this does to aeroplanes...) These factors imo make it critical that you have lifted off, in a slow, smooth fashion WELL BEFORE the corner, so that the powertrain is settled against it's mounts, the car has dived, and all is settled. People get caught out when they realise they are going too fast for a bend because suddenly they have to cram all this action into a small time frame, right at a critical moment, and as a result they are not smooth and measured, which acts even more to unsettle the car, leading to a possible Loss Of Control (often actually at a speed that they would have in fact been able to negotiate the corner at had they not been in a panic! This also explains why front wheel drive cars can be nervous and unstable when you lift off, but fine when you brake, and it also explains why advanced drivers can harness this difference in effect on the car between lifting and braking to actually control the yaw of their car. It also explains why Left Foot Braking has such a dramatic positive effect on vehicle stability, even on the road outside of "extremis" simply because you can slow down WITHOUT lifting off at all........ ;-) sorry for the long post Reg, but it's an interesting, and rather complex subject ;-)

Keep these videos coming. Your advice has saved me from a couple of potential accidents. Thank you

Im sure you are saving some lifes by sharing this knowledge

I appreciate these frequent uploads Reg! 😀

Thanks for your videos very informational. One of the biggest improvements I have made to my driving is to assess the speed for corners and not brake through them if I can to have more tyre grip and flexibility. Another thing I enjoy from country lanes is being engaged with the acceleration coming off the gas for limit points and building the speed on the acceleration when visibility improves, using the accelerator to control speed with acceleration sense other than brakes requires further observations and is more engaging to the experience. A lot drivers tend to use the brakes more than acceleration sense but it makes a big difference. It has definitely made me feel more engaged and enjoying the drive on the right roads. Though one thing you can't get from the videos is the confidence to do overtakes and perform them safely. This is currently out of my ability so I do not do overtakes, I did a few poorly executed ones and decided I needed to learn more. I am taking ROSPA soon. I did the DIAmond advanced test without any tuition it was good but not enough advanced technique. Though since I have only been driving a year since I passed the learner test I am getting much more enjoyment out of driving through taking observations and planning seriously. My car has high torque in the lower gears and is very fun to drive around the 2nd and 3rd gear range and mostly it is responsive in most situations in third gear and rarely get out of fourth gear. Though in the colder weather right now spending a lot of time in fourth gear instead of third at 30mph to reduce torque and chance of skid.

Just much enjoyed reading your first book and thought I’d check out your vids. This, the first one looked at, is my Local road which was a surprise! Must watch again and this time listen to what you’re saying!

Thank you. It’s been a while since I was active in my local IAM group so these are useful refreshers to tune up my driving.

Thank you Reg for another great video!

Love the vids reg, been watching for quite some time now... As a car fanatic and someone who loves speed very very much your videos help me and others to get more performance out of our cars whilst remaining safe on the UK roads, as you will know the roads here are not the best, also saving some of us from wrapping cars around trees lol.

Great video. I find it so hard not to brake too late into a corner, which really messes up getting onto the accelerator. Need to get out more when this lockdown thing lifts. Look forward to the left foot braking video. Funny I remember from working on cars many years ago how much engines moved on their mounts. A camera under the bonnet would be interesting to see whats going on. Oh and great scenary - helps make up for jot being able to go on hol.

Thank you sir. I will practice this as soon as my next commute.

Thanks for the very informative video. I’ve been searching for this exact info for a while now

I truly enjoy this kind of video. When are you coming with more instructional videos?

No word. Just thank you 🙏🏻

Great video as far too many drivers take the Coroners approach to corners instead of learning

Great content and advice 👍

Excellent!!

Excellent! Really enjoy your video! Thanks!

Hi there is a lot of learning from your videos. Thank you so much. 🙏🙏 If possible can you make a video on how to apply brake when downhill or infact downhill with zig Zag road like mountains. It would be a great help.

Useful information as always. Can you make a video on driving position?

My tip for cornering - slow in, fast out.

Great stuff...👍

Another good 'un Reg! Thanks

You mention Position in your video and give 2 reasons as for the reasoning of position: Stability and vision. However you didnt mention the third: safety. The videos are aimed at improving safety, however having had this discussion brought up recently, the positions 1-3 are not set in stone when approaching the corner. Position 1 is ideal for a right hand bend, this affords you the best vision through the corner gives you the stability by increasing the radius of the bend. Stability is higher due to less forces applied to the tyres, but ultimately this leads to an increase in safety as the car is better balanced etc. Position 3 is ideal for a left hand bend when the corner is open as if it is blind then safety is compromised by both vision and stability. In the same way that through open corners offsiding is perfectly acceptable (providing the hedge line isnt masking pedestrians or cyclists....especially those on stupid incumbent things!) as the vision is good So I always bring it in slightly on the blind corners and use a more 2.5 position just in case the rear wheels of an arctic are straddling the white line leaving you to have to make adjustments mid corner unsettling the vehicle.

Sir can I just say you must keep doing these videos.. you will keep growing you can do amazing things with this growing platform not only for yourself but for people like us wanting to be safer but also enjoy the roads

Wonderful

With automatic or dual clutch, does it automatically select the gear for the corner?

Welp i kept my foot on the gas turning left but lept going straight into a ditch

Many thanks

Thanks Bro, can you use the drone above your car so we get a birds eye shot.....cheers

Where are these roads??

nobody teaches anything like that in driving school. you learn about signs, lines and six million rules, so people think they're good drivers being polite, cautious and obedient.

Brake early accelerate early

Haven't I seen this road on Need for Speed??

Applies to bride walking down the aisle....get yaself in the right gear, smooth steering, smooth acceleration & don't upset the balance. Applies to groom as well, if he's still p*ssed....😂

'If you take a corner too fast you'll probably crash'. Einstein 1946. My own personal favourite 'Slow down sirri borrocks'. Confusious 1228.

Hey buddy you are driving on the wrong side off the road lol

Too many people use the controls in a binary fashion! The car is never settled, even on the straights! Sadly, I doubt those people will be watching and Reg Local content 😥

Someone's going to have a crash following this advice.