THinking about trading in my Z4M Roady and my 328i for the new sdrive35i....300HP is close enough to the current M's 330. The folding tin top gives me both a coupe and a roady....and I don't really drive either of my current cars much anyway working from home.....and...I can probably do an even swap....both are very low mileage, the Z4M is an 06 and the 328i is an 07. And i'll save on insurance....What does everyone think?