If an F-4 can be made to fly, an IS can be made to go 200 mph in the Mile. But it surely won't be a cheap adventure. You would be wise to leverage the experience and skills of those who have already done this, or expect to spend a LOT of time re-inventing the wheel.

 

You're just a little confused. Here's what Lexus says for the ISx50:



And the IS-F:



Still a long way from 200 mph.

 

Its absolutely possible, but the car and the motor will require some serious work

 

I think it can be done. We already started looking for a 2j and everything.... LOL