Audi TT RS Roadster (Mk III) specs

I'll take a 4c with chiptuning to 320ps and propper tires like michelin super sport (fits on original rims). And then you can watch my back (for like 10 seconds) :P

Good luck getting the holeshot on Audi TT RS, whatever the tyres on 4C ;)

Well I'll be 500kg lighter and I don't have a 250km/h limitation :D
The only way you beat me is if we go shopping (trunk space).

The classic chipped car talk. And why couldn't someone buy a cayman S and have that chipped as well? The Cayman chassis can easily handle 450hp. And since we are talking about chipped cars, why would a 250kph limiter ever be a problem?
Also, the Alfa 4C uses a pathetic Econ car transmission. Pushing 320hp would be unwise

Well my comment was semiserious :).
The 4c is far from perfect out of the box. However, the chassis is very well (from Dallara). There is just no other car in this price range, which offers a carbon tube. The tires are the main reason that the car follows every rain groove. The next thing to change are the springs and dampers. If you switch them, you could also add an aftermarket rear suspension arm. With the chip tuning you gain 80bhp (460Nm and 320bhp) and there is a software upgrade to the gearbox (55% faster shifts). An oil cooler for the gearbox is also a nice upgrade. At the end, you could throw some after marked brake pad at it. All together transforms the car into a driving machine and costs around 10k.
The gearbox can manage the engine upgrade. At least there are no gearbox failures so far. The Giulietta QV has the same engine and gearbox since 2014. It’s one of the few dual clutch gearboxes with a dry clutch. Such a clutch isn’t made for nonstop drag racing otherwise you end up like Kobayashi at Le Mans. However, if you do some track days you normally don’t have to do a race start.
The tire and brake wear compared to a 15-1600kg car is laughable and the feeling is much more racecar. The running costs are also a fraction of heavier cars. It is a very affordable car for the performance and it is strongly underrated. I know of a lot of ex Lotus or Porsche owners who love their 4c.
Just wait for the 400bhp mods, these cars will be hard to beat on tracks without endless straights. AVL (sells their knowledge to the manufacturers) has made a concept engine with production stability. They switched the charging, rods, pistons and the cylinder head (cooling) with the valve train. They achieved 474bhp at 8000rpm and 422Nm. Certainly, you need to take care of the gearbox as well.