So long, diesel: Mazda confirms the move to a more powerful motor

Ferrari clinches IMSA Manufacturer and Driver Championships

Champion portrait Patrick Pilet: "Porsche is my second family"

Fittipaldi and Barbosa capture second Prototype title

Porsche shocks the field with Petit Le Mans overall victory

Soggy Petit Le Mans a showcase for good drivers, a sad end to the season for others

Sensational win for GTLM Porsche at Petit Le Mans

Chevrolet claims Prototype Engine Manufacturer Championship

Bourdais takes lead before Petit Le Mans is red flagged

Heavy rain and high drama hit Road Atlanta

Action Express hits the front and the gravel trap in second hour of Petit

Soggy Petit takes dripping-wet green flag

Petit Le Mans notebook: 'Horrid' wet track, C.J. Wilson pitches racing...

UPDATE: VisitFlorida.com Corvette DP on the Petit pole, but GT Le Mans cars close behind

Chevrolet claims first GS Championship in SportsCar Challenge

BMW, Audi win the Road Atlanta battle; Chevrolet and Mazda win the war

Army vet turned student working with the team at Petit Le Mans

TRG-AMR targets two titles

Magnussen: We need something remarkable at Petit Le Mans

All four TUDOR Championship class titles up for grabs at Petit

Deltawing Technology group unveils Deltawing GT concept

All-out battle for championship honors awaits Corvette DP and Ford EcoBoost teams at Petit Le Mans

Porsche, BMW, Corvette teams ready for battle at Petit Le Mans

Leading by only one point, TRG-Aston Martin Racing is heading into Petit Le Mans

DeltaWing ready for hometown race

Chip Ganassi Racing adds Dixon to Petit Le Mans lineup

Aurimas “Odi” Bakchis takes his first victory moves into first place in the standings

Why Dodge killed the SRT Viper racing program

Turner wins 7th Sportscar Racing Championship

Ferrari wins North American Endurance Cup at Petit Le Mans

SRT Viper reaches its goal at Road Atlanta

DeltaWing team ends season on a high note in hometown race

Best finish of the season for Meyrick and DeltaWing at Petit Le Mans

$300,000 presented to champions of Patrón Endurance Cup at Road Atlanta

Wayne Taylor Racing takes Corvette DP to Petit Le Mans win

Petit Le Mans: A long day's journey into night, and then some

No. 912 Porsche 911 RSR pulls even with No. 4 Corvette C7.R after opening at Petit Le Mans

Wayne Taylor Racing gains ground on Action Express in fight for $100,000 prototype title

Rum Bum Racing closes 2014 IMSA CTSCC on the podium at Road Atlanta

Petit Le Mans halfway report

Action Express Racing: Championship when Corvette DP No. 5 took the green flag

DeltaWing team starts season-high fifth at hometown race

Goikhberg takes Prototype Lites championship

Thompson takes Porsche 911 GT3 Cup championship at Road Atlanta

Fittipaldi pads Action Express points lead with Petit Le Mans pole

Billy Johnson and Ian James win CTSCC challenge thriller in Ford Mustang

Fall-Line, Murillo Racing take Continental Tire championship at Road Atlanta

OK, you go first: And Team Seattle-Alex Job Racing does