Cmn4761 T Shirt, Unisex, Short Sleeve, Black, Cotton, Tagless Tee, L For Cummins on 2040-parts.com

Roush unveils two 540-horsepower Mustangs

The go-fast guys at Roush tore the cover off two 540-hp 2010 Ford Mustangs today. The range-topping Stage 3 Mustang will be limited to 103 copies for 2010, while the 540RH will slot in as minimalistic approach to the iconic Pony Car for customizers. They both launch this fall.

Chevrolet Corvette ZR1 will be Indy 500 pace car

The 2013 Chevrolet Corvette ZR1 will be the pace car for this year's Indianapolis 500--a fitting victory lap as the current sixth-generation Corvette heads for the end of its production run and the end of this version of the ZR1. The Indy pace-car Corvette will wear the 60th-anniversary trim package--an arctic white exterior with silver stripes down the center of the car and a blue interior with suede leather coverings on the steering wheel, center console and in the seats. Changes for the pace car include only the addition of a light bar on the roof, some racing-safety equipment and race logos.

Future products: Mazda's new direct-injection engine family arrives in 2011

The big news at Mazda is a new family of direct-injection gasoline and diesel engines that will start to arrive in 2011. Mazda will make significant changes to vehicle platforms to accommodate the Sky engines, which will be more powerful and fuel-efficient at lower displacements than the company's current engines. The first Sky gasoline engine is expected to debut in the United States in 2011.