I WOULDN'T buy the BA Falcon with the dedicated LPG system. It's old LPG technology and suffers stalling, stumbling, surging and lack of performance unless it's well maintained. A better alternative is to buy a regular BA wagon and have it converted to dual fuel using one of the latest gas-injection systems that have no drive-ability problems. I get too many complaints about the Falcon to recommend it. The VZ wagon was available with a dual-fuel LPG system developed by IMPCO and using a gas-injection system. That is a good way to go, but I wouldn't recommend buying a VZ wagon and having it converted, because there are said to be problems with the regular Alloytec engine when running on LPG. The Mazda6 is a good car with a good reputation for reliability, as is the Corolla, and I'd be happy to buy either.