Nissan Silva was made before the Nissan 200sx and Nissan 240sx, first production of the silvia was 1965–1968 called the Nissan Silvia CSP311. It's really hard to say what car model it really is could be a Nissan Silvia S15 with a LHD conversion. (goods.ruten.com.tw/item/show?11071229914817) Best way to find out is ask the driver for kenda.
its not a s15..this is what a s15 looks like www.globalcar.com/img/15246403.jpg ..This looks like the rear of a s14 with the front of a s15. I've seen it done a few times before...