I wasn't aware of the colour until I saw this thread and I had wondered what the colour of these cars were. Judging by the link from post above, this could be the right colour? I'm not 100% sure as they look a bit green-ish. Image Unavailable, Please Login Image Unavailable, Please Login Image Unavailable, Please Login
I had to do a double take on your photos - the last one is a Euro 308, with the one preceding it a 328 and they look nearly identical in front. It's hard to tell with the lighting, but I'd guess the 328 is blu chiaro, which has is brighter than blu medio.