I drove a Regal GS with a 6spd manual. Some would say it's not a competitor, but with a $39k MSRP, a 6mt and a 270hp 2.0T, it was worth checking out.
'98 Dinan/RMS stage 2+(VAC cams, CES Cutring etc)
'15 Buick Regal "T"(wife)
'06 Saab 9-5 Combi 5mt (full suspension, LSD, clipped turbo etc)