Two NAs and and NB on Aston Expressway last night

I saw three MX5s on my way home last night at around 5:10pm. They were heading in to Birmingham City Centre on the express way. A yellow NB and two NAs, one was a very nice shade of red (looked the same red as Phil) and I can’t remember the colour of the other NA.

Was there a meet on in the Birmingham area last night or was it just coincidence?