Here is a good overview of Ettore Bugatti and the company he started. While it misses any mention of the Type 13 that really launched the Bugatti brand, I think it does do a good job overall of describing the company history.
Automobiles Designed by Bugatti
This video gives a good overview of all the cars either designed by Bugatti or by the company bearing his name.
Pur Sang
If you have $300k plus, you might consider purchasing a brand new Bugatti Type 35 built in Argentina. It costs a lot less than a real Bugatti and delivers the identical feel and performance because how precisely it follows the original design and manufacture.