News in depth

Door to manufacturer influx in GTP opened by rules extension, says IMSA boss

Westbrook rues ‘killer’ IMSA penalty after hitting tire reader in pitlane

Meyer Shank Racing returns to IMSA with new Acura GTP deal

NBC coverage windows for 2025 IMSA events revealed, new date revealed for Watkins Glen

America’s got talent! Is Trackhouse’s versatile teenager the next big thing?

Bronze-rated Keating not interested in racing 'scary' LMDh cars again

BMW rules out using evo jokers on LMDh car before end of 2024

IMSA Watkins Glen: Porsche wins wild, rain-halted six-hour race

IMSA Watkins Glen: Acura beats Cadillac for GTP pole by 0.038s

Derani to split with Action Express Racing at end of IMSA 2024 season

IMSA Watkins Glen: BMW beats Cadillac in FP2 but sister car shunts

IMSA Watkins Glen: Cameron pips returnee Blomqvist after two red flags in FP1

Taylor vows Acura can ‘gain back the points we lost’ in IMSA title chase

Porsche: Winning Le Mans and Daytona in same year would be "amazing"

LMDh, LMH regulations extended to 2029 WEC, IMSA seasons

Inception McLaren confident of fighting WEC regulars after Le Mans GT3 pole

Jota, Wayne Taylor teams favourites for Cadillac switch in WEC, IMSA

Why IMSA’s downtown Detroit GTP debut was divisive among drivers

IMSA Detroit: Acura beats Porsche with stunning pass in wild street fight

Tandy: Detroit race traffic will be “unlike any other” track in U.S.

IMSA Detroit: Porsche 1-2 in GTP qualifying, Corvette sweeps GTD Pro

IMSA Detroit: BMW pips Porsche, Cadillac by a tenth in FP2

IMSA Detroit: Porsche fastest in FP1 after red flag for manhole cover fix

Conquest Ferrari squad adds Serra for Detroit IMSA GTD Pro class entry

Newgarden “missing” Cindric at Indy, Porsche sportscar boss replaces him

IMSA Laguna Seca: Porsche beats Cadillac after late-race Tandy pass

IMSA Laguna Seca: Bourdais pips Derani for pole in Cadillac 1-2

IMSA Laguna Seca: BMW beats Cadillac to quickest time in FP2

IMSA Laguna Seca: Acura fastest, Aitken shunts Cadillac in FP1

Bourdais: Repaved Laguna Seca “to be at least a couple of seconds faster”

Bourdais: No tires strategy “only way” to win Long Beach

Long Beach IMSA: Cadillac scores 1-2 in action-packed sprint race

IMSA Long Beach: Derani takes pole for Cadillac by 0.009s, then wrecks

Long Beach IMSA: Bourdais spins then tops FP2 for Cadillac

Streets of Long Beach receive changes ahead of the IMSA, IndyCar doubleheader

Long Beach IMSA: Cadillac pips BMW in twice red-flagged practice

New compound to thwart Porsche’s inspired Long Beach ‘no tires’ call

Ricky Taylor looking for redemption at Long Beach

Gradient replaces Legge with McAleer for rest of 2024 season

Vasser Sullivan fielding two GTD entries for Long Beach

Friends of Laguna Seca and Monterey County reach settlement of lawsuit

Hawksworth “knew it was going to be a battle” for GTD Pro win at Sebring

Bourdais reveals Cadillac suffered electrical issues in Sebring 12 Hours battle