Mazda Announces SKYACTIV-D Clean Diesel Engine Program For New GRAND-AM GX Class

Mazda Racing: Rotary Out, Diesels In

Mazda Goes Racing With Its New SkyActiv-D Efficient Diesel

For Mazda, It's Diesels at Daytona - The New York Times

2014 Mazda SkyactivD Prototype News and Information, Research, and Pricing

Mazda USA - Mazda North American Operations president and CEO Jim O'Sullivan announces specifics of the coming 2013 Mazda effort in GRAND-AM Road Racing: an all-new car, based on the 2014 Mazda6

Mazda returning to LMP2 racing with diesel power in 2014 Tudor United SportsCar Championship

ANSYS Drives Design Of New Mazda SKYACTIV-D Racing Engine

GX Set to be Eliminated for 2014 – Sportscar365

Mazda6 diesel to race at Rolex 24, team and drivers announced - Autoblog

Mazda6 Skyactiv-D Racecar ready to bring diesel to Grand-Am - Autoblog

Mazda Motorsports Sportscar Racing News