The opposite, really - the chassis and basic suspension design, as well as most of the interior parts, are from the Elise. The rear sub-frame, hubs (5-lug vs 4-

The opposite, really - the chassis and basic suspension design, as well as most of the interior parts, are from the Elise. The rear sub-frame, hubs (5-lug vs 4-lug), complete drivetrain, brakes, and all body components besides the windshield are specific to the Roadster, though. The Elise itself was sold in several forms with a ton of different ICE drivetrains (Rover 4-cylinder, Toyota 4-cylinder, Toyota 6-cylinder, GM Ecotec) and is popular for these kinds of custom drivetrain builds, since it was a highly modular platform - fundamentally the Elise is an aluminum tub with a front composite crash structure glued and a rear tubular subframe bolted on.