RIGHT, the real reason the nova was not called the corsa in britain.
http://specs.amayama.com/toyota/corsa/1982_0/photo/
there was already a car called the corsa, made by toyota that could have been sold over here, so they called it the nova, which has never, ever translated as no go in spanish.... the chevy nova was sold in latin america for decades with no such crap jokes.
by the time the corsa-b came out, the toyota corsa was a long gone distant memory.............
About the sport..... there were loads of normal novas being thrashed about in the british motorsport scene in the early eighties, mostly thanks to the Astra/Nova challenge being a fantastically popular one make series run within the british rally championship. lots of cars were converted to sport spec, considering all it really was just a 1300 with a big cam & twin webers. so the actual chassis numbers were pretty much irrelevant, especially considering Colin McRae rolled his 'first car' at least once, a genuine sport was pretty much a base model 1.3 with a brown interior & a 2 speed fan. and it was sold as a b or a c reg. which makes them all at least 22 years old.
As for the decals, I have never seen a proper rally nova sport with the decals, because they were always covered in sponsors decals, only the roadgoing ones had the decals