Minilite wheels were fitted. The first Unipower GT built specifically for competition was chassis 766.2. This car was the very first car sold and built using the first production chassis ever completed. In 1966 this car appeared at the 1000 Kilometres of Paris with a 1340 cc engine. This engine was later swapped out for one of just 1102 cc. It would initially be raced nationally in early 1967 by John E. 'Turner' Miles for its owner A.E. Newman. In 1968 it would be bought and raced by Piers Weld-Forester, who later in 1968 would buy the Unipower GT production Rights, before it being raced as a Factory entry in the Nürburgring 500km and Barcelona 12hrs in late 1969. The third competition car completed was chassis 1266.9. This was the car shown on the Unipower stand at the 1967 Racing Car Show. It featured a Downton tuned 1275 cc Cooper S engine. 1266.9 was purchased by Salisbury tuning firm Janspeed and raced internationally on one occasion in Madrid for them by BMC works driver Geoff Mabbs in the latter half of 1967. Serial number UWF1007 was a car with special lightweight carbon fibre reinforced fiberglass bodywork made by Specialised Mouldings. Weld-Forester took this car to Le Mans in 1969. The bright yellow GT was given the sobriquet "La puce jaune" ("the yellow flea") by the French observers. The engine was a 1293 cc Cooper S engine tuned by BMC. UWF1007 was clocked at on the Mulsanne Straight, but its co-driver failed to qualify for the race. It later appeared at Mugello. UWF1007 was later fitted with a Cosworth FVA 1600 cc engine. Other racers were campaigned by John E. Miles (for Em Newman and Gordon Allen), Andrew Hedges, John Blanckley, Stanley Robinson, Roger Hurst, Tom Zettinger and Alberto Ruiz-Thiery who all raced cars on the continent at such venues as Mugello, the Nürburgring, Spa, Barcelona, Jyllandsring, Vila do Conde, Zolder, the Targa Florio and Jarama. Two Mk1 race cars were also shipped to the US, the first for Paul Richards to race in Group 6 events. Kris Harrison and Bob Barell also raced a Unipower GT at the 1969 6 Hours of Watkins Glen amongst other events whilst Roger Enever and Weld-Forester entered a car for the 12 Hours of Sebring in the same year but did not go. In addition to the specially prepared competition GTs, several private owners