Really nice kit. Interesting car, raced in the 1939 LeMans 24 hour race. Needed to be painted white, after which it just didnt look right for a car racing continuously for 24 hours, so toyed with the idea of weathering it. I've used mud on my tractors before but not just plain dirt. Model had an annoying 2 part body, where the joins still showed after filling and sanding and then I stuffed up painting the bonnet straps so that meant I will give weathering a go. From a youtube tip I used enamel thinner and pigment powder. I think I may have overdone it a bit. Pretty dirty circuit in 1939! Pretty sure I've also seen a stock version about as well. Be looking to add that too.
Also it turns out I actually have 1/24 models of 2 cars that ran in the 1939 LeMans, the winner a Spark Bugatti 57C and this BMW 328 which finished 10th
https://www.racingsportscars.com/photo/Le_Mans-1939-06-18.html