Disappointingly though, Lexus has decided to carry over powertrains unchanged. The base IS 300 with rear-wheel drive retains the turbocharged 2.0-litre four-cylinder, the all-wheel-drive IS 300 keeps the 3.5-litre V6 and the top-spec IS 350 is powered by a 3.5-litre V6, all with the same horsepower and torque figures as before. While RWD versions of the IS get an eight-speed automatic, the AWD versions get a six-speed automatic.
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