Today I got mine sent from Mulfab. With all the fiddling and not all tools available (had to look for some as my garage is not a didy one) it took me less than 2 hours. A well organized guy will need less than half my time.
Hannes once: Green M3W; 2013 now: Red 4/4 Sport; 2011 and some practical cars for use in real life
