Recommended tires and size
 

I bought my 2013 GP mini Cooper with the Contisport tires which just spins off line when I hit the gas!
Which tire do you recommend that will grip a lightweight sports car? Must be a run flat tire because there’s no room for a spare... I have a 205/45 R17 now..Want to ask others if a 245/40 R17 91w will fit comfortably?
Thank you in advance Joe