Any fast auto focus recommend? - compact camera

[tailgatepro]

Hi,

I looking for fast auto focus compact camera for fast shutter speed.
Est lens can zoom 200mm above if possible.
Plan to take racing car and karting beside DSLR. any advise or recommend?

 

[shierwin]

Check this out with max f/2.8 aperture

http://www.dpreview.com/reviews/panasonic-lumix-dmc-fz200