If you are looking at a super saloon please come take a look at my M6 that has had all the S63Tu mechanical issues sorted out.
https://www.6post.com/forums/showthread.php?t=2214008
A "super saloon" is a performance-oriented sedan. It's a British term i picked up through all my years of travel and automobilia.
__________________
2015 F06 M6 Silverstone Metallic II, Individual Full Leather, B&O, Night Vis, CCB, RKAutowerks (CP Rods/Pistons, DI Cams, CF Intakes, Coated DP's & Billet Diff Brace), InfinityAuto Turbo Inlets, Mishi Oil Cooler, JB4, XHP S3, BM S3