LJs signia is not a celica, its bigger, mainly powered by i6 engines and would be in a different class cuz its bigger
nowhere it mentions its based on a celica, it does mention that it was originally inspired by the 240z and the c110 skyline (which the signia uses the L series engines from those two) but that he changed a bunch the body shape is nothing alike, and its pretty longer The rear looks nothing alike it also shares pretty much nothing in the front this is not to say that theres some parts inspired by a celica, but it clearly isnt a celica and more of a 240z/c110 skyline sports car instead of the celica being a budget sports car (hence why i4 and small)
The only thing i say kinda match up with the signia are the upper quarters, other than that it's pretty much a different car. --- Post updated --- I will 110% add some racing and bozozoku configs
I hate being that person but bosozoku is bikes and the gangs in general. Theres a really cool site called kaidoracer.com that gives you all the vocab with the Japanese spellings as well. Super helpful site that I've been using on the regular apart from my own research