$12,922 – Miramar, CA:

“Roll Cage:
– Professionally built by The Truck Shop in Miramar, CA
– Meets SCCA / NASA build specifications only requiring door bars to compete in wheel to wheel racing
– Primary tubes are 1.75″ x .120″ DOM
– Secondary tubes are 1.50″ x .095” DOM
– Cage was dropped through the floor pan so all welds are 360*
– Dimple die reinforcements tying the front down tubes and main hoop to the A and B pillars
– Tubular seat mounting frame running above the floor pan
– Rear halo / crash bar protecting fuel cell, battery and wiring
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1971 BMW 2800
fuel: gas
title status: clean
transmission: manual “

Source: https://sfbay.craigslist.org/sfc/cto/d/1970-bmwlike-new/6504100924.html