Mustang GT does not suck in handling. A SCC article compared a mustang GT with Type R last year, and the two were tied at the course track. It might not turn in as fast, but it has enough power to punch out of the hole after the apex.
About McLaren F1, I believe Ralph Lauren used to own two, but he sold one. And Wyclef Jean have one right now.
If you guys have a chance, download the "mcLaren vs Skyline" video on Kazaa. You will not believe how fast the McLaren pulls away after 20mph.