Lotus has done chassis setup/tuning for many car companies. They're good at it.
Lotus Engineering Limited, is an offshoot of Lotus Cars, which engineer cars for third party companies. Examples are shown here:-
* Lotus Cortina—Lotus version of the famed Ford Cortina Mk. I.[citation needed]
* Lotus Talbot Sunbeam—Talbot's hot-hatch rally car of the early '80s.
* Vauxhall Lotus Carlton (also Opel Lotus Omega, internal name Lotus Type 104) - At the time (early 1990s) this was the fastest saloon car available, with a top speed of over 170 mph (274 km/h).
* The 1991 Dodge Spirit R/T with a version of the 2.2 L K-car engine with a 16-valve DOHC head designed by Lotus with over 220 HP.
* Vauxhall VX220 (also Opel Speedster) - Lotus produced and based upon the same aluminium chassis design as the Lotus Elise. Production of these models ended in 2005
* Lotus styled and assisted with the engineering of the Tesla Roadster, an electric sports car, as well as licensing some technologies to Tesla Motors and constructing the Roadster at their plant in Hethel. [1]
* Lotus was responsible for most of the design, development, and testing, of the LT5 DOHC V8 powerplant for the Chevrolet Corvette ZR-1.
* Lotus was responsible for various aspects of the Sinclair C5 electric tricycle.
* Lotus was responsible for the suspension calibration of the Toyota MR2 Mk. I, the Toyota Supra Mk. II and Mk. III, the Isuzu Piazza, the Isuzu Impulse as well as various Proton models.
* Lotus was responsible for the development of the Campro engine together with Proton[10], as well as its variable valve timing system, the Cam Profile Switching (CPS). Currently available in the 1.6-liter and 1.3-liter variants, the Campro engine now powers most of Proton's newer models.
* Lotus has worked on the suspension of the Mahindra Scorpio to make it more stable at high speeds.
* Lotus is partnering with ZAP on the design of their next electric vehicle, the ZAP-X, based on the APX concept vehicle.
* Lotus Produced the revised Chassis of the Isuzu Piazza