Im trying to find that out as well. So far apart from wheel offset (which I doubt is even noticeable) my main conclusion is: A cooler look (ofcourse subjective to taste).What is the purpose for spacers on our cars?
It is just for looks mostly unless you get wheels that aren't made to the car's proper offsets. The quality made to order wheels like HRE for example are made to the proper offsets thus not requiring any spacers. I personally don't like the idea of spacers either.Im trying to find that out as well. So far apart from wheel offset (which I doubt is even noticeable) my main conclusion is: A cooler look (ofcourse subjective to taste).
I removed my rear ones because mine rubbed against the fender when going over bumps, I saw horrible pics about fenders gone bad (paint starting to chip and major cracks on the back of the car!), and rear tires wearing out a lot faster.
I still have my front spacers on (previous owner installed spacers) but after doing some research I have found out the following:
Front spacers can be very dangerous! Not only do your front spacers have to keep up with lots of force from the car's weight, it also has to deal with force when you're wheels are turning and your car is accelerating.
I have found horrible stories about all kinds of car's suddenly losing a front wheel and end up crashing because of breaking bolts/spacers gone bad.
Ofcourse someone would say, if you install them properly it wont happen. One common mistake people make is not to use longer bolts after they put the spacers on.
To me it's just another risk of relying on another part that has to keep my M5 alive. Im going to remove the front ones asap.
10mm will not work for our cars. I have 15mm front and 12mm rear.
You've not switched to studs?? I just swapped summers and winters yesterday... man I'm glad I have studsA bolt that is too long is just as bad as a bolt that too short. I use multiple lengths of bolts for swapping between my three sets of wheels: OEM, track, and street.
Yeah, yeah, yeah...I should just do a stud conversion and call it a day.
Personally, I would never run a spacer greater than 15mm.