[2] His rally tuned cars have won 15 National Championship titles—driven by himself, V. R. Naren Kumar and Vikram Mathias—winning the tuners trophy several times.
For the Coffee 500 rally in Chikmagalur, N. Leelakrishnan substituted the regular driver Upendra Narayanan who had fallen ill and won that event.
After a hiatus in 1988, he entered the McDowell Rally D ’Endurance and won a second place after a terrific duel with the then reigning INRC champion (newly introduced in 1988).
Also till then both MRF and JK Tyres were running on Tuned Electronic Fuel Injection, which had earlier replaced the multiple Webber and SU carburetors, when EFI were not available in any of the vehicles manufactured in India at that time.
[4][5] Though Leelakrishnan is widely associated with Rallying, Leela's motorsport career started with Racing and is also notable for engine and suspension tuning for competition events.
During his MRF years, apart from his successes in Rallying events, Leela won a few races in McDowell 1000 races in the All India Grand Prix at Sholavaram and also won the Formula 3 title in 1992 in a Dallara Mugen Honda with stiff competition from J. Anand, R. Gopinath and Akbar Ibrahim who were all one time title winners.