It’s always fun to see obscure concept cars go up for auction, and we have quite an oddity to show you today. The unique 1998 Cadillac EldoRODo is up for auction in Wisconsin on Bring a Trailer.

Cadillac has its fair share of outrageous concept cars that never made it to production. The American automaker has an extensive catalog of outlandish concept cars, like the futuristic 1959 ...

Most notable among the sketches is the first-gen Cadillac Series 62 ... which is considered the first concept car produced by General Motors. Some of the earliest examples included in the GM ...