Can you drive for Uber in a Ferrari?

Yes, cool idea. They have an SUV now.

And have some slob sit on my leather? No way, dude.

Why not?

I use my Rolls-Royce.

Your answer can be found on YouTube. Several people have done it with exotic cars. McLarens, Ferraris, Lamborghinis, and even a Bugatti Veyron!

Uber cars have to have four doors I think 

You keep on thinking like that, Ray.  Are you having Thanksgiving at your place this year, or upstairs at Mommies?

For free publicity purposes alone, Uber would *love* you to do that even if it breached their usual rules about car suitability.

But even if you were telling the truth, *nobody* would offer you the legally required “hire and reward” (US = chauffeur insurance?) necessary to do that. Not unless you paid them an annual premium far in excess of the vehicle value. 

Sure you are...sure...

Inhaling a lot of this will help you:

there is a luxury option when you go to select your driver.  which will include sports cars and other high end vehicles.