Lexus is all about brand image (Premium Car Manufacture) and low volume cars. Hatchbacks are high volume cheap cars for the masses(UK Only Comment) . If they were to introduce a Hatchback version this type a car would not help with their brand image, look at the baby 3 series, a cheap and nasty version of the 3 series. and it's seen as the 'Poor Man or Woman' BMW. You also have to ask yourself why introduce this type of car when you already have cars in this range with 'Toyota' Avensis. They would introduction car that directly competes with one of it's own, not a good idea as Volkswagan are now finding out with Seat and Skoda, the paying public soon wake up to fact they are paying a premium money for VW but can get the same but cheaper with either a Seat or Skoda Badge. The only way it would work for Lexus, if they were to introduce a Hatchback version then it would need to offer something different, ie supercharged or turbo charged engined, very low and a out and out little racer and of course call it a 'Coupe'. One other thing to BIM is look at the 'X' type Jaguar, launched with 3.0 and 2.5 ltr engines 4 wheel drive, production was sold out, then they introduced the 2.0 Version FWD, this one varient killed the 'X' type sales overnite, Jaguar buyers don't want FWD if they did they wouldn't buy a Jaguar. Just and example of a car manufacture changing direction and getting it wrong.
This is only my opinon and I don't doubt for a minute someone will come up with a another good reason why Lexus should introduce a Hatchback version. That's what this forum is all about
Happy New Year.