Considering both cars, similar years and mileage they seem pretty close in price despite the M6 being such a more expensive car to start with.
What are the plus and minus of each?

 

Been monitoring the plummeting prices and looking at these two, and a mate with an E46 CSL was offered an M6 on a very strong deal (even against his own!) and it got me thinking. Using it every day, 20-50 mile commute with occasional heavy traffic, either occasional weekend use or weekend long runs, what's best?