[decooney]

Interesting to note. In previous conversations with RD while looking at these cars for some potential friends/customers, this is something that I brought up as a possible concern. i.e. how effective is the suspension, is it adjustable, and can it handle 400 or+ horsepower? The response I got was to upgrade to the M3 suspension at purchase...

I wonder if this is still the recommendation or how it relates as a possible fix to your concern of bottoming out?

It would also be good to know what other performance aftermarket BMW shocks and springs could directly replace what stock shocks/springs you have now. Maybe that is an option as well. Let us know how it goes or what you determine as your upgrade/fix... I'm sort of still watching how the BDR cars shake out over the first couple of years. Thanks.

Good Luck.