The XJR-10 debuted a 3.0-litre twin-turbocharged V6 engine, a significant departure from the naturally aspirated V12 that powered the [[jaguar-xjr-9|XJR-9]] in Group C competition and at Le Mans. The V6 was developed to suit the IMSA GTP category's specific requirements, where the turbocharged formula offered competitive advantages in the American series that the Group C architecture was not optimised to exploit. The engine developed for this programme was later used in the [[jaguar-xj220|Jaguar XJ220]] road car project, connecting the racing prototype directly to one of the most significant production Jaguars of the early 1990s.
[[twr|TWR]]'s engineering operation handled both design and construction. Tom Walkinshaw Racing had been the operational engine behind Jaguar's racing renaissance since the mid-1980s, taking the [[jaguar-xjr-9|XJR-9]] to Le Mans victory in 1988 and structuring the factory IMSA effort as a parallel campaign alongside the European programme.
The XJR-10 accumulated a solid win record across three seasons of IMSA GTP competition. Victories included the 300 km from Portland in both 1989 and 1990, the 2 Hours Del Mar in 1989, the Lime Rock 150 in 1990, and the 2 Hours of West Palm Beach and 2 Hours of Miami in 1991. The car competed across the shorter sprint and sprint-endurance rounds that dominated the IMSA schedule.
Drivers who raced the XJR-10 included Martin Brundle, Raul Boesel, Jan Lammers, John Nielsen, Price Cobb, Alain Ferté, David Jones, and David Leslie — several of whom also drove the [[jaguar-xjr-9|XJR-9]] in Group C concurrently, reflecting the overlap between Jaguar's European and North American programmes during the period.
The XJR-10 occupied a specific niche within a broader family of [[twr|TWR]]-built Jaguar prototypes. The [[jaguar-xjr-9|XJR-9]] was the Group C machine that won Le Mans; the XJR-10 was its IMSA-specific sibling. When [[jaguar|Jaguar]] replaced the XJR-10 in 1991, the replacement was the [[jaguar-xjr-16|XJR-16]], which continued in IMSA GTP for one season before the programme transitioned to the XJR-14 under revised regulations.
The period from 1988 to 1991 represents the peak of Jaguar's factory prototype ambition, a campaign made possible by [[twr|TWR]]'s engineering and operational infrastructure. The XJR-10 sits in the middle of that era: technically innovative with its V6 turbo and consistently competitive across three seasons of North American racing.
[[jaguar|Jaguar]] — the manufacturer whose factory programme this car represented
[[twr|Tom Walkinshaw Racing]] — the organisation that designed, built, and ran the XJR-10
[[jaguar-xjr-9|Jaguar XJR-9]] — the concurrent Group C sister car and 1988 Le Mans winner
[[jaguar-xjr-16|Jaguar XJR-16]] — the direct successor in IMSA GTP
[[jaguar-xj220|Jaguar XJ220]] — road car that shared the XJR-10's V6 turbo engine
[[imsa-camel-gt|IMSA GTP Championship]] — the series in which the XJR-10 competed