I wonder if you could modify your car to take F1 Wheel Nuts.
Imagine how pissed off a thief would be if he came to take your wheels and found them held on by one of those.
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2009 Nissan 370Z Base w/ Sport Package
F.I . LTHs with Non-Resonated Cat-back exhaust (C.F.) / Stillen Gen3 CAI / Up-Rev Tune