Dodge produced more than 70,000 Challengers in 1970, but fewer than 1,000 rolled off the assembly line as R/T convertibles.

A quick peek at the VIN reveals that this Challenger wasn't born with a 426-cubic-inch Hemi, but it's still a rare classic.

A window sticker, too, adds just one more layer to the story. Take this well-documented 426 Hemi-powered 1970 Dodge Challenger R/T currently taking bids on Hemmings Auctions. The all-important ...