The Speedster is derived from the Lotus Elise, so closely related to it. This refers to the frequent use of bonded aluminum profiles in the chassis and and above fiberglass, the position of the drive and the body shape as Targa. Thus are also taken the body platform, but with a larger wheelbase, and the simple fabric roof. The rest is different. For the body design the drift is more important than a good cW-value.
There is the Opel Speedster with two strongly in torque engines mounted in an additional steel sub-frame. The weaker has more displacement, the greater compensates by a turbocharger with intercooler. Both are not so much suitable for speed orgies. Quite different with the Elise, which is driven by a 1.8 liter engine from Toyota, which has a maximum speed of approximately 8500 rpm. Therefore appears especially the Turbo Speedster significantly harder in the use of force, what its driving characteristics do not always benefitit in critical situations. The Elise is here more harmonious.
Both cars are not so well suited for the motorway and long journeys. It begins with the complex process to get in and the scarce pedal distance because of the narrowing of the chassis in the foot space and is continued in the enormous noise level on freeways, with or without top. The existing, rear only, tiny trunk considerably simplifies the choice of clothes.
The Opel Speedster one think of as second or third car despite its price, which requires on the road the full attention also by experienced drivers. It can not quite decide whether to understeer because of the comparatively narrow front wheels or to oversteer due to its his brachial engine use. If you have survived then such a ride at the limit and still without an accident, then you can be counted among the fastest on this part of road, Motorcyclists included. Anyway at best you go alone, because true to the Lotus philosophy was out of weight reasons waived any further security and convenience products except on ABS and driver airbag.