At the MotorTrend Tuner Car section you’ll find the latest on cars with extreme modifications, reviews of tuned cars, and profiles of the people who tune them to perfection.

The GTI stands out for its sophisticated chassis tuning ... want a fast hatchback with a mature and refined demeanor, making it a compelling alternative to traditional sports cars.

I love it. We put a Thornton Tuner 3 in it. It gave it considerably more HP and even better gas mileage. This is a great computer car. 2005 Mazda3 Hatchback. A+ Safety. Protect loved ones.