We've long known undefeated boxing champion Floyd Mayweather loves cars and loves to buy them. The guy has a massive collection consisting of Ferraris, Lamborghinis, Koenigseggs, Rolls-Royces and, of course, Bugattis. A while back we heard he bought a Chiron and now, as it turns out, he's selling two of his Veyrons. The sale is being handled by Scottsdale, Arizona-based Luxury Auto Collection, and the two Veyrons have a combined total asking price of $6.4 million.

Here's the specific breakdown: The 2011 Veyron Grand Sport with 1,000 hp, and painted Satin White with a white and red interior, has a price tag of $2,450,000. It has only 1,688 miles on the clock and the sale includes all service records, such as a recent wheel and tire replacement, normally a $25,000 job. The second Veyron is also a 1,200 hp Grand Sport but it's a 2015 Grand Sport Vitesse, hence its $3,950,000 asking price. Because it's so new, there's only 1,041 miles on the odo. With its Satin Black and exposed carbon fiber exterior and black and orange interior, this particular Grand Sport was one of the last ones imported to the US.

Remember, a total of just 150 Grand Sports were built worldwide, and combined with the celebrity ownership, these two Grand Sports will likely only increase in value in the years to come. As for Mayweather, we doubt he'll miss these Bugattis all that much. One look at his massive collection and you'll understand why. Photos courtesy of Luxury Auto Collection.