M Roadster (230-250 bhp????) Power differences? (archive)

So I decided to test my Estoril Blue M Roadster (which I bought 100% new) with my G-Tech a few days ago, and I kept getting a 0-60 of ~5.12 seconds. I was a little dissapointed with this number, since I got it in 4.75-4.85 seconds (back in March) with my previous M Roadster (which was a "demo" by the way), which I ended up crashing at the track (Mosport). Now, that car had more than 6,000 km on it, and this one had 3,200 km. Do you think dealers chip demo's, or does BMW simply release their car's with different levels of power?

By the way, my 323Ci puts out 0-60 in 7.4 seconds, and it's an automatic, which beats BMWs 8.2 second promise, quite handily.

I'm really curious what you guys think, plus I recently checked a dyno of an M Roadster (link), and it says stock hp is 250 bhp??? What's going on, is there a 10 bhp +- deal at BMW?

Thanks,
Ken

2001 BMW M3 (Waiting List)
2000 BMW M Roadster
2000 BMW 323Ci Coupe

250 bhp stock M3/M Roadster dyno

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