Your ultimate driving songs?

Wow, I dont know that I could pick just one... Boston is well represented here so far, but I also would have to pic some Boston... 'Dont Look Back', or 'Cool The Engines'... On a nice upper 70's degree day, light breeze and sunshine, arm hanging out the window, Def Leppards song 'Hysteria' or 'Animal' totally make the driving experience great.. .and since someone mention Joe Satriani... 'Summer Song' is a good choice... there are just so many to pick from... lol