Adding up
First off, I have utmost respect for everyone involved, but....@400k or 425k some things don't add up....
Let's think what it would take to build a car from available materials and sources to any spec (cs, csi, csl, group x racer) you can be the judge of the final price. But efficient work/labor practices should be advised....
Secondly, I skimmed the description, but no real provenance leaped out at my head....yes Rahal is famous and the 'man' for buying a Bat. And it's rare, 1 of 157. But I don't see a continuous history of provenance. That and the fact that much of the original car has been repaired or replaced leads me to wonder about the price.
Are they just asking labor charges? If so I will gladly pay BMW AG 400k....to get real world money, there has to be a strong case. Else what might end up happening is you sell an expensive car and have to continue speculating about its price up or down for the rest of its existance...I always thought these things rose w/ inflation, and the few excellent/original examples peaked.
My .02 cents
MF