A 2001 is going to be the naturally aspirated 5.4L engine - same drivetrain as the 210 E55. Should be a rock solid 350HP.

I'm not too familiar with the 215 chassis. I'd look into the suspension - not sure if this car is ADS, ABC, airmatic, or what. Do some research and learn the common failure points and costs. It may have a significant cost of ownership.