Porsche to end IMSA GTP program by 2027 amid Penske speculation
2 sources • 1 min read • Latest: Oct 22, 2026, 8:31 AM
Last updated Oct 22, 2026

Porsche will withdraw its factory operation from the GTP class of the IMSA SportsCar Championship at the end of 2027. The decision is rooted in discussions from a year ago regarding the team's future. Under the current contract, Penske is expected to manage the Porsche 963 LMDh for one more season in both IMSA and the World Endurance Championship. Speculation now arises about the possibility of Penske shifting to Cadillac after Porsche's exit.
- •Porsche will end its factory operation in IMSA by 2027.
- •Penske was scheduled to run Porsche's 963 LMDh for one more season.
- •Speculation exists about Penske's potential switch to Cadillac.
- •The decision follows discussions held a year prior.
- 8:31 AMMotorsport.com — Porsche's IMSA GTP programme set to end: Could Penske switch to Cadillac?
- 8:31 AMYahoo Sports — Porsche's IMSA GTP programme set to end: Could Penske switch to Cadillac?
"Porsche will withdraw its factory operation from the GTP class of the IMSA SportsCar Championship at the end of 2027, according to Motorsport.com's sister title Motorsport-Total.com. This stems from a decision made a year ago. Under the original contract, Penske would have continued running Porsche's 963 LMDh on a factory basis for one more season in both IMSA and the World Endurance ...Keep reading
"Is Porsche's factory prototype programme nearing its end? Here is why an IMSA withdrawal is likely and how partner team Penske could switch manufacturers as early as 2027
Sources
External links- Motorsport.comOct 22, 2026, 8:31 AMPorsche's IMSA GTP programme set to end: Could Penske switch to Cadillac?
Porsche will withdraw its factory operation from the GTP class of the IMSA SportsCar Championship at the end of 2027, according to Motorsport.com's sister title Motorsport-Total.com. This stems from a decision made a year ago. Under the original contract, Penske would have continued running Porsche's 963 LMDh on a factory basis for one more season in both IMSA and the World Endurance ...Keep reading
- Yahoo SportsOct 22, 2026, 8:31 AMPorsche's IMSA GTP programme set to end: Could Penske switch to Cadillac?
Is Porsche's factory prototype programme nearing its end? Here is why an IMSA withdrawal is likely and how partner team Penske could switch manufacturers as early as 2027
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