Lexus will show its LF-A exotic sports car concept at the North American International Auto Show.

The LF-A was designed to explore the outer limits of sports car performance, while showcasing a bold new direction in styling for the Lexus brand.

The 2005 GX 470 luxury utility vehicle also makes its motor show debut in Detroit. The new GX receives a substantial gain in performance and technology with the addition of a more powerful V8 engine and a new sport package that includes the advanced kinetic dynamic suspension system (KDSS) along with special trim.

Equipping the 2005 GX 470's 4.7-litre V8 engine with the variable valve timing with intelligence (VVT-i) system and an electronic throttle control system with intelligence (ETCS-i) has increased output from 235 horsepower to 270.