Red Rose is a factory offered engine upgrade option. If i remember rightly its just adjusted valve timing and larger injectors ? So produces the more powerful engine spec of 390 BHP.. or so TVR claimed ! Same as the 'S' edition Tuscan
My tuscan red rose build sheet/invoice has the following, red rose conversion £3574. It also had gas discharge headlamps, hydratrak diff, full hide trim, gold badges, overmats, aircon and d.a.b tuner. All yours for £48,270 back in 2001