Shelby Demonstration
It shows its work.
Shelby is the research assistant inside the Stonewall workspace. Here a defense lawyer asks it a question built from the facts of My Cousin Vinny. The answer rests on five fictional record entries; each numbered label is a link to the line it cites, and on a wide screen the entries sit beside the answer.
The State’s expert says any mid-’60s GM could have laid down those two tire marks outside the convenience store, so the defendants’ metallic-mint Buick Skylark is as good as a confession. Settled fact, or is there something in the record?
It is a trick question, counselor — and the record answers it. Here is the chain, link by link.
The scene photographs show two parallel burn marks, equal in length and equal in intensity Fictional demo citation A0064, lines 112 through 118, source tire mark analysis; record entry 1.. Equal marks mean both rear wheels were driving. That requires a limited-slip differential — positraction — and positraction was not available on the defendants’ 1964 Buick Skylark Fictional demo citation A0071, line 23, source expert testimony; record entry 2..
Second link in the chain: the marks leave the road flat over a curb cut — no fishtail, no hop. A solid-axle car cannot do that; the left tire lifts and the mark breaks. Independent rear suspension, or it did not happen Fictional demo citation A0071, lines 88 through 96, source expert testimony; record entry 3..
Put the two together, and in the mid-’60s GM built exactly two cars carrying both: the Corvette — which no eyewitness mistakes for a Skylark — and the 1963 Pontiac Tempest Fictional demo citation A0112, line 14, source GM drivetrain matrix; record entry 4.. Same body length, same convertible top, same metallic-mint green in every witness photograph Fictional demo citation A0130, lines 7 through 9, source witness photo index; record entry 5..
The record does not say the defendants are sympathetic. It says the car in the record is not their car. The record holds.
The facts are from My Cousin Vinny (1992); the sources are invented for this demonstration. Each numbered label names a source and the lines it cites.