the tires are worse.
special bead design, requiring specialized equipment to change. the first few years, that equipment was only available @ the Bugatti factory.
meaning to change the tires, you had to send the wheels back to France.
The Tires are about $42k/set, and have to be changed every 2500mi(4000km) / 15 min @ top speed / 5 years.
oh, and the wheels have to be replaced every other tire change..(the wheels are about $69k a set)
now there's a shop somewhere here in the states that has the right equipment, so you just have to send them there, instead of back across the pond to France.