Here's my bit on the side. It's a 2005 Holden Monaro CV8 (ok, it was sold in the UK by Vauxhall, but I soon swapped those badges back!) It's powered by a 5.7l Chevy LS1 V8, and with a sports exhaust currently puts out about 7 times the horsepower of the bus!
Love the idea that you swapped it to Holden badges, nearly all of them here have swapped the Holden badges for Chevrolet bow ties & associated badging.