The Jaguar-Arden XKA, has made this car their target. with a $120,000 price, virtually the same, Jaguar offers a 4.4L v8 supercharged, with 468HP, and a 0-60 in 4.6 seconds. A much larger car, and a lot more luxury features. The Z8 amount of plastic in it, sometimes make the Jaguar X-Type look good. That's a bad sign for BMW. But then there is the model from the Arden dealership. the RS. the lightweight model. a super project that took, almost 2 years. and the result? a 4.6L Supercharged V8 engine, that's not tuned for elegant sunday driving, but for performance. a super 0-60 in under 4 seconds, and the great sound and force of a 465 KW engine. Yes people, we're talking like over 600 hp here. price tag? $160,000. So as you can see. BMW Z8 is outdated. Jaguar offers better models at the price range. Even a regular XKR is fairly acceptable, performance wise. It's time for BMW to answer the critics, and establish a good sports car.