As sad as it sounds, I'd look into a Cadillac CTS-V before an MKS. The only V8 RWD that Lincoln even makes now is the Navigator. They killed the Towncar off last year. And unfortunately the only option you have in a RWD Ford V8 car is a Mustang. Whole reason I got an LS is because I didn't want a Mustang!
I've driven a Taurus SHO and it has a very rally-car type of feel. Definitely a different feeling car for sure. Not that same locked in feeling I get in the LS. It definitely pulls harder then the LS and feels good going around corners, but I wouldn't want to do a hairpin or french turn in it. Maybe the build in stability control would make up for that. It just feels like it would over-steer quite easily.
I've driven a Taurus SHO and it has a very rally-car type of feel. Definitely a different feeling car for sure. Not that same locked in feeling I get in the LS. It definitely pulls harder then the LS and feels good going around corners, but I wouldn't want to do a hairpin or french turn in it. Maybe the build in stability control would make up for that. It just feels like it would over-steer quite easily.