My personal taste for my car is to sit level. Since I have switched to the Brabus rears all around, the fronts fill the wheel opening so well, that the gap around the rear tire bugs the crap out of me !The problem I have run into with my Brabus is there is not much (if anything) out there that will lower the rear of the vehicle more than the Brabus Spring Drop already is (confirmed with Madness)...so it's a waste of money to buy any lowering spring kit, as they will be at the same height that the Brabus Spring is already at (or be negligible at best). So buying a set of lowering springs would only work on a stock height/spring Smart to get the desire look.
Only choices I have found is to go Coil Over OR cut 1 coil out and heat/bend the remaining portion inwards to follow the original "beehive/football" shape for fitment ~ but then you run into having a suspension component that is not at the correct matching spring rate which will affect the ride quality (which I do not want to sacrifice). The last option would be to have a specific set custom made that are the same Spring Rate but @ the desired ride height from a place like Swift Springs (or similar).
Personally I really want to ditch that "raked" look...I cannot stand it...I much prefer a properly stanced & fitted vehicle compared to an outdated 1970's Muscle Car look.
Everything that I do to my smart is reversible, so I would like to swap springs vs modifying my original springs. I thought about lowering the Brabus flares by creating a spacer, but the rocker panel would still not be level. I guess I could raise the front a little, but afraid of handling issues. When I was a teen, I used the coil spring spacers that look like muffler clamps to clamp coils together to adjust the ride height on a Corvair. I don't think there is enough room to do that on a smart.