What’s the oddest vehicle you’ve seen at an autocross?

60's VW bus with a SBC in the backseat.....Not worthy of Emod, but that was the only class it could run..(Grin)

My friend Josh's Grand Cherokee 5.9L Limited. He had it lowered, way stiffer springs, 200tw tires, and the front driveshaft disconnected so that it was CAM legal. It met height-by-width and he got a letter of approval from the SCCA, but pretty much every tech inspector and safety steward hassled him about it, leading to it's retirement after just a year.

He followed that up with a Ram S/ST the next year, but it was the same issue with tech inspectors and safety stewards not being thrilled about it, and he also kept annihilating cab mount bushings (turns out they aren't meant for this kind of abuse). He has since moved on to a $400 P71.

(not me)

Second place is probably an sufficiently lowered canam x3, complete with hoosiers.

I've brought some weird ones

I once ran a 1986 Jetta diesel at a rainy event in Toledo. This was the 52hp version, none of that fancy TDi stuff. I think I finished 2nd in D or E stock out 7 cars. Most runs I had 3 passengers.

Weirdest I've run:

• 2001 Crown Vic P71 in STU... and won
• 2008 Mazda5 in SMF... and won
• 2008 Mazda3 in CAM-S (labeled as SCAM) and nobody protested (last event of the season and the Cobra had grenaded it's diff at the event the day before and nobody else in CAM showed up).
• 1973 Javelin... DFL on slicks in snow

Weirdest I've seen:

• 1970 Satellite wagon 383, and it was half decent! (With a ton of $$$$ in the suspension)
• 1966 Chevelle with a roots supercharger through the hood
• 2008 Mazda5 with hand controls that was fast!

"Run what you got"

After course cleanup, the firefighters that had stopped to watch the last runs of the day hustled their firetruck around the course by following the tire tracks. It was an extremely impressive showing that earned them a standing ovation from all awaiting the awards ceremony.

My Yugo (aka "The Yugo from Hell) was a contender. 
 

The car could do a 360* spin inside an autocross gate without touching a cone!  (Ask me how I know!)

Run what ya got...4 door Plymouth Acclaim...mine

A buddy's Honda 600