BTCC
In 1990, Janspeed built the Nissan Skyline GTR to Group N specifications for endurance racing, winning the 24 Hours of Spa and 24 Hours of Nurburgring races. Building on their partnership with Nissan, Janspeed was awarded the works contract to build the Nissan Primera for the British Touring Car Championship starting in 1991.[6]
The BTCC had just undergone a major rule change making the series open only to cars of 2.0 engine displacement in an attempt to eliminate homologation specials and attract manufacturer support, better known as the Super Touring regulations. Nissan saw the potential in competing and decided to join the series full-time. János was installed as the team principal, and Alan Heaphy as the team manager. Their drivers were ex-Formula 1 driver Julian Bailey partnering Jan's son Kieth O'Dor and with sponsorship from Castrol oils, the cars had potential but required a lot of development work. Kieth finished 17th in the standings that season.
Kieth was partnered in 1992 first by Andy Middlehurst and then James Weaver, and results were better. O'Dor improved to finish 12th, however the year ended in a huge accident at the TOCA Shootout at Donington, when O'Dor's Primera vaulted the fencing at the Old Hairpin.
1993 was a much better season. O'Dor was paired with triple BTCC champion Win Percy and the car was much improved. Kieth took a brace of podium places before a breakthrough maiden win at the British Grand Prix support round at Silverstone with Percy second. Kieth finished 6th overall at season's end.
The Janspeed Nissan used a gearbox developed by David Brown David Brown Ltd.
The following season was a struggle. The other manufacturers were starting to invest millions of pounds into the series, and although the team was now sponsored by Old Spice and employed Eric van der Poele, the cars were off the pace. At the end of the year Nissan pulled out of the BTCC to concentrate on the STW in Germany. This caused Janspeed to also leave the series.
Nissan rejoined the series in 1996 as a semi works team run by Andy Rouse and later run by RML with great success.