S13 Silvia is available for import and there are a few running around here. Also RHD. Coupe (Notchback/Fastback) looks surprisingly similar to the Skyline side profile minus the wide fenders unless the owner added aftermarket flares. At speed wizzing past each other it’s extremely easy to confuse the two.
I went to a 240 meet couple weeks ago and a guy came in a RHD Silvia. I was wondering at the time why the lot filled with Silvias had a GTS-T there. At first I firgured the GTS-T drifts pretty well and 240 is a drifter car so it seemingly fits. Only then I realized it was an S13 Silvia. It didn’t make sense at the time either cause I’m an extremely speculative person when it comes to cars and I have an S110 so I tend to look out for any Silvia.