No I don’t plan on doing any racing its just that a friend ask me this question and it made me curious, and in the movies you always see 350z, skylines, and rx-7 which by the way are all japanese cars.

The reason you see cars like the supra and the skyline etc is due to the fact that they offer great tuning ability and across the World are used as street racing cars and also used in drift events as well as track and some in rallies as well as strip drag races so you see these are all round cars.
Potential wise is due to the fact that older models like the skylines and supra’s have detuned engines they already have power figures which are above the book figures you see on paper as they had to be kept below 280bhp but really they ran at around 330bhp but this again was still in a detuned way as true running power on these cars is around 500-600bhp with stock internals and well above with further mods.And what makes these cars popular also is the lack of modifications needed and little money spent to release all this true power.so the cars you see are cars you do see and i see all the time because of these reasons.
You can get smaller cars like the civic etc which are called names now days but they can see some nice power figures in there own right.
American Muscle wise you do see in films also there are plenty of films which feature American Muscle cars,although in many countries these cars are often owned by collectors and not racers and are more polished up versions then racing versions.And due to many countries having such high tax cost on the high the cc of the engine and the high cost of fuel you more often see low cc Japanese cars which have great potential from there low cc engines.
Also numbers iam sure there is not loads of American Muscle cars driving around town,yet there is a good amount of Japanese cars driving around so its what is out there and what would actually be at these events in real life.In my town alone there is 3 evo’s 5 Skyline’s 3 dozen Impreza’s 2 GTO’s
4 supra’s 1 180sx 4 fto’s 2 350z’s 1 300zx 2 celica gt’s just of the top of my head.
potential cars i see are
skyline
supra
evo
impreza
nsx
350z
300zx
silvia
cima
chaser
cresta
g35/350gt
i30/cefiro
galant vr4
civic type r
accord type r
integra dc2 dc5 type r
eclipse
maxima
sileighty
fto
3000gt/gto
mx5
mx6
323turbo
speed3
rx7
rx8
calibra
328i
m3
m6
s2000
celica t sport
celica gt4
mr2 turbo
monaro
cirrado
jetta
gof gti
pulsar gti-r
scion tc
prelude
cupra
leon
180/200sx s13
corolla/levin
to name a few and then there is which iam sure you know American Muscle cars.