Castrol Red Green — 2 museum-grade prints in this palette. The XJR-14's 1991 World Sportscar Championship sweep arrived as Group C transitioned from turbocharged fuel-formula cars to 3. 5-litre naturally aspirated rules — a regulatory reset that favoured Jaguar's clean-sheet Brawn design over aging Porsche and Mercedes entries. The Toyota Celica GT-Four ST165 and ST185 generations established Toyota Team Europe as a WRC powerhouse — Carlos Sainz's drivers championships and the Castrol partnership made red-green Toyota coupes fixtures of early-1990s rally broadcasts. TTE's Banbury engineering culture produced a turbo four-wheel-drive package that challenged Lancia's Delta Integrale dominance and set the template for Toyota's later WRC success with the Corolla and Yaris programmes.