X2… CTS-V > IS-F & they are in the same price range.
i would take a C63 AMG over he IS-F
if i was going to get something of this caliber & it was going to have an auto tranny i’d go for the Jag XF-R but it is a bit pricier then the other two. even the XF supercharged is no slouch @ 470hp. but you don’t get the extra 40horses, better suspension, etc… that come in the R