Like the title say, I have a Schroth rallye 3 Harness, DOT, and TUV approved, you'd need to check local governing rules for events, but should be good for most Autocrossing. This are dealer option in Germany from BMW, so I think that says something about them, Should be used in conjunction with a proper roll cage, but better than nothing. This is the three point the connects to the C pillars seat belt mount with specifically designed length harness', the drivers side has the Schroth Autocontrol II Inertia Reel, and the passenger side needs either that ($79 for replacement from Solo Performance Specialties) or the tail strap, which is $25 from the same place. These cost $149 each with just the tailstrap, this one has the daily driver friendly reel so you can move as if it were a regular belt. I am looking for $150 for it all.