With its GS model, Lexus spent years trying to create a full-sized executive saloon alternative to cars like the BMW 5 Series, the Mercedes E-Class or the Audi A6. This is the fourth generation model introduced in 2012 and mainly sold here in hybrid form. This MK4 design was sharper than its predecessors, both to look at and to drive, as well as being safer and more practical. This won't be the first model of its kind you think of if you're looking for a used car in this sector, but include a GS in your deliberations and you might find it a tempting proposition.