# IMSA Faces GTP Grid Shrinkage

> IMSA's GTP grid shrinks as manufacturers pull out, raising questions for 2027 season.
- Title: IMSA Faces GTP Grid Shrinkage · Autoweek | Shortify
- Summary: IMSA's GTP grid shrinks as manufacturers pull out, raising questions for 2027 season. IMSA faces reduced GTP entries and manufacturer withdrawals as it…
- Keywords: imsa, gtp, weathertech championship, lmdh, hypercar, ferrari, toyota, genesis, ford, mclaren, porsche, le mans
- Source: Autoweek — https://autoweek.com/racing/more-racing/a74112341/imsa-faces-big-questions-as-gtp-grid-shrinks
- Author: Jonathan Ingram
- Published: 2026-10-12T22:02:58+00:00
- Read time: 1 min
- Topics: imsa, gtp, weathertech championship, lmdh, hypercar, ferrari, toyota, genesis, ford, mclaren, porsche, le mans
## IMSA Grid Shrinks
IMSA's WeatherTech Championship faces a 2027 season with just four GTP manufacturers and fewer than 10 premier class cars.
## GTP Manufacturers Withdraw
Ferraris and Toyotas have not shown up for GTP, with Genesis, Ford, and McLaren planning new prototypes for Le Mans and WEC.
## Porsche Leaves WEC
Porsche is confining itself to IMSA and will not resume WEC and Le Mans until proposed new rules in 2030.
## WEC Hypercar Entries
The WEC will have 18 factory entries in Hypercar class at Le Mans in 2027.
## IMSA Show Model
IMSA is a private enterprise owned by the France family where the 'show' has always been the watchword.
## Contact Issues
Too much contact and penalties occur in IMSA, as seen in recent races like Road America and Petit Le Mans.
## TV Ads Highlight Crashes
IMSA's TV ads show events like Action Express Racing's Cadillac being run off the track by Porsche Penske Motorsport.
## Championship Concerns
IMSA officials worry about the 'show' being perceived as unworthy due to contact and full-course cautions.
## Jim France's Role
Jim France has built IMSA and LMDh into its current high standing but faces challenges with contact and GTP entries.
## Key takeaway

IMSA faces reduced GTP entries and manufacturer withdrawals as it prepares for 2027 season with fewer than 10 premier class cars.