For an E36 coupe used on track days, the common choice is a bolt-in rear roll bar such as the Autopower unit made for the chassis — it installs without welding, gives you rollover protection and a harness mounting point, and stays street-livable Rollbar vs Cage.
Welded-in bars from various fabricators are stronger and are what you'll need for competition, but they're overkill for HPDE.
So for a dual-purpose track-day car, the bolt-in Au
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