Originally Posted by exadius
Doesn't the M3 come with that flat repair kit instead of a spare? If so doesn't that stuff you inject into the tire to fix the falt make patching difficult?
Yes, it does, at the sealant will make a supreme mess of the inside of the tire. I would only use it as an absolute last resort. I carry a plug kit, which together with the compressor, will handle the most common punctures until you can get it patched.