This 1978 XJC V12 Coupe will roll across the auction block soon, reminding collectors of this relatively rare V12 model.

We suggest this customized 1975 XJC as the starting point for your project. It's got the requisite Chevy 350 swap (complete with some unnamed type of 5-speed transmission and Holley double-pumper).

The auction house estimated this XJC would fetch between £26,000 and £30,000 on auction day, which translates to about $33,600 to $39,000, but the Jag ended up a no-sale and is now offered for ...