I do like the look of them but they are driven by Daddy's boys that really piss me off and think they are awsome. I gave a Corsa a good go before mine was even mapped and it was tuned I think, deffo had a decat because it sounded nice!! I bet a stage 1 GT would give a Astra a good go though I never had the chance to race one when mine was mapped! Love the Artic Corsa or the Burg Astra though they sound wicked!!