2014 Dinan S1 BMW M5
The last time the Dinan name graced the pages of Autoblog, Michael Harley was waxing poetic about the S3-R BMW 1M Coupe, a car that still stands in his ranks as one of the best cars he's ever driven. And that wasn't just because it was, you know, amazing. It's because as far as tuners go, Dinan produces some seriously well-executed products. Harley said of