Built as an iteration of the vehicle platform that began with the Harrier RX83C, the LR6 marked the company's return to Chevrolet after its predecessor's experiment with Ford Cosworth power.

[1] On debut at Oulton Park in the Thundersports Series, the LR6 was seven seconds slower than David Mercer in the previous generation Harrier LR5.

[1] Months later the car made its debut in the BRDC, setting the pole time by over 2.8 seconds but quickly retiring on lap one with rocker issues.

[2] In its only other start that season, the LR6 finished fourth overall at Brands Hatch.

[2] After making only one attempt in 1989 and failing to start with engine trouble,[3] the car made four attempts in 1990 with a best result of fourth overall at Thruxton.