I had a Cross8 which is basically the same thing except in a Crewman. As a standard car it was thirsty and gutless, but when I got a 3.5" exhaust and high flow cats then a tune by Oztrack it made it heaps better in power and economy and it sounded good too. Adventra is a bit lighter than a Cross8 too. A bloke here at work bought one recently and got exhaust and tune done but he also got a small cam put it and it hammers, sounds like cr@p though as it is a twin system, these sound better with a single. He fitted bigger rotors and Corvette calipers to it as well, but due to the rotor shape on these you have to fit 20" rims and it looks ridiculous. I fitted CV8 series II/III 18x8" rims to mine with 245/45/18 tyres and it was really good. I have the before and after dyno sheet here somewhere. Mine was a 5/2005 VZ which i'd recommend you get over a VY or VZ/VY, much of it is improved, a lot of it not immediately obvious. The VZ wasn't released in Adventra and Cross8 until 4/2005. Prior to that it was a hybrid VY/VZ after VZ was released late 2004. If you get a Cross8 there were some 6.0L ones built in 2006 but as far as I know V8 Adventra finished up in 2005 so there are no 6.0L 2006 examples.