I saw the Mazda GTP turbo diesel Skyactive race car at the pits at the Long Beach GP. Carbon fiber body, all the high tech stuff, their compound dual stage turbo maniifold was a log! They also had a small turbo sitting on top of the larger turbo, crazy stuff to see on a serious race car. Sounded unique to say the least going by. That tiny diesel buzzing through 2 turbos, almost sounded like the Jetsons car.
