Everyone will realise one day that fords are a better car lol
I think MSD took the vectra SRi 2.5 V6 and remapped it and changed the cams and some other bits to make it circa 190bhp... The GSi is alot better to drive than the SRi V6, but still not quick by any means, i would think an ST24/ST200 would easily show 1 a clean set of heels.