the punto GT engine is crap, its still a 1.4 8v no matter what you do to it. just because it had a turbo welded onto the exhaust manifold it doesnt suddenly become a good engine. the extra insurance would be silly as well. it would be cheaper to get a 1.8HLX like mine, or if you want silly power and a turbo, get a JTD HLX and remap it to heaven, and still enjoy going to pay for fuel. either way you look at it, converting to a GT engine is a waste of money, wont give the performance you expect and wont be cheap to run. the only possible advantage is you get a nice dump valve whoosh so everyone knows you've got a turbo, but that doesnt mean much when you get overtaken.