Our favorite attribute of the XF-R was its duality. Yeah, it's stupid fast and can be loud when opened up, but if you want to, you can drive it like a regular luxury sedan. However, turn the DSC off and put it in Dynamic driving mode, and everything changes. Toss it around a corner and the back will slide out like it's auditioning for "Tip Drill Pt. 2". Want to talk about fun/scary? This thing, if pushed, can have your knuckles white and hair arm hair raised. Then when you go to pick up your girl, you can turn all the systems back on and drive calmly to dinner. It's awesome.