History of DeLorean
In October 1976, the first prototype DeLorean DMC-12 was completed by American automotive chief engineer William T. Collins, formerly chief engineer at Pontiac. Originally, the car was intended to have a centrally-mounted Wankel rotary engine. The engine selection was reconsidered when Comotor production ended, and the favored engine became Ford's "Cologne V6." Eventually the French/Swedish PRV (Peugeot-Renault-Volvo) fuel injected V6 was selected. Also the engine location moved from the mid-engined location in the prototype to a rear-engined installation in the production car. The chassis was initially planned to be produced from a new and untested manufacturing technology known as elastic reservoir moulding (ERM), which would lighten the car while presumably lowering its production costs. This new technology, for which DeLorean had purchased patent rights, was eventually found to be unsuitable.
These and other changes to the original concept led to considerable schedule pressures. The entire car was deemed to require almost complete re-engineering, which was turned over to engineer Colin Chapman, founder and owner of Lotus Cars. Chapman replaced most of the unproven material and manufacturing techniques with those then employed by Lotus, like the steel backbone chassis.