I doubt any of us are going to go out and buy a new car any time soon anyway but what interests me is how VW have made that power in a production Golf. If any of us did get our hands on the car we would probably be looking at making it have more power, so I would expect we could see it do over 310 but would need to know the spec of the Turbo.
We would probably make it lighter, tighter and stiffer, then what sort of weapon would that be?
I want to know if the turbo gets so hot is makes the radio turn off sometimes, if it squeaks like a legion of mice or being slaughtered, if it scraps over speed bumps, if you are constantly aware that another area needs to be modified to allow it to handle the previous modification.
There are cars that are faster, have more power and toys from the factory. That some engines are capable of more BHP but it all comes down to cost. The 4 cylinder turbo set up might have no real soul but it can make a lot of power cheaply.