Floyd Mayweather has $15 million worth of exotic cars that he doesn't drive sitting in his garage

Floyd Mayweather Jr. has more money than he knows what to do with.

He's the highest-paid athlete in the world, and is expected to pull in well over $100 million when he fights Manny Pacquiao on May 2.

Mayweather, who's known to flaunt his wild spending habits, gave ESPN a look inside the garage at his Las Vegas house in an MTV Cribs-like segment with Stephen A. Smith.

In the tour, Floyd showed Smith a car collection that he says cost nearly $15 million. The two had this exchange:

ESPN: The seven cars that you showed me are in excess of 15-to-20 million dollars?

Mayweather: Let me see what's the number ...

ESPN: And you don't drive them?!

Mayweather: You're right it's close to $15 million.

ESPN: And you don't drive them?!

Mayweather: No.

BI's car expert Benjamin Zhang says Mayweather would have had to overpay, but it's plausible that he paid $15 million for these seven cars. Of the seven cars Mayweather showed ESPN, there were two Ferraris, three Bugattis, a Lamborghini, and a McLaren.

The breakdown: