I don't know if the Hybrid is a barrier, the MKZ comes stock with the 2.0, and the 3.5 N/A v6 is the current upgrade, but if you want the bump in power you need to opt for AWD as well.
the 2.3 could offer a bump up from the 2.0s 240 hp and 275 lb-ft of twist and still be available in FWD format...