Today, the very pure design of the original Audi TT, which made such a big impact when it first appeared in 1998. The TT badge is a nod to the naming of the sportiest models produced by the now defunct manufacturer NSU, which was absorbed into Audi in the late sixties. Production of the third-generation TT ended last year as the German manufacturers continue to drop niche models from their ranges. Photos: SMMT Test Day for journalists, Bedfordshire, 2023.