Yup, that bottom splitter is probably the most hideous part, and I normally like the way front splitters look. Just not the way it's done on the M250. I also don't like the squareness of the front end...the way the hood and the side meet in that sharp angle, with such flat sides. Too boxy. If I want to drive a box, I'd buy a volvo. Funny you mention the RX-8, though...It's one of the other cars out there that I can't stand. Whoever penned the RX-8 concept should be slapped upside the head with a model of the chevy avalanche.
If you can pardon the soapbox for a moment, I actually am kinda frustrated with the ugly designs of most cars right now. Cars are either 'appliance-like' in their sameness, or they are ridiculously ugly in an attempt to break the mold. Some examples: Aztek, Avalanche, Sunfire, Enzo, Scion, most GM products, ZX2, etc.
At least it looks like some manufacturers are starting to break out... Crossfire, 2005 mustang, audi TT, s2000, Liberty.
If I offended anyone by listing their car as ugly, I'm sorry. Someone should be by soon to lock me back in my cage...
Cade