There was a 70 R/T Challenger U code in Las Vegas when I was 16 in a wrecking yard. I didn't write any codes down, but it would have been FJ5 H6X9 V9Y V21 V3W. Way too many colors on 1 car for me, but it certainly was unique. I should have bought it looking back on it now. Factory air, power windows, and cruise control (turn signal lever was still in it).