Sure there are more than 39 of them. We had about 15 of them at the VBOA last year. Not all were 2.5 V6 though... Thought MSD were the company in charge of the MSD ones (where the 39 cars came from?) that had the 2.5 V6 with just shy of 200bhp?
Friend of mine is currently fitting a C20LET to his one... Tis going to be fun. Sold his Phase 3 LET astra, bought this, been working on it since. Wheels are black now though.. This WAS a 2.0 16v ecotec unit. HEnce the engine swap..