A nice pick of cars there and all will see you right,as said before there are amny factors to owning a tuner car,IE
The Supra MK 4 is a really great car and has plenty of power with its tunable 2jz engine,although lacks rear room from the back seats being to small for young children even (experience with my kids when we was going to buy one and friend had one)and no trunk space,not a prob but it could be,daily car also these like many tuners love the fuel.
The Silvia is a great car myself and my own opinion would go for the s14a due to having more hardcore looks if nothing else, car wise these are nice cars and offer great handling and quite roomy the ka engine can be tuned and there is a turbo kit out there for it also,other versions carry the sr20 engine which again are super tunable.
The Skyline great cars and the R32 is a great version which offers plenty of leg and trunk room,a great super tunable RB engine and a great awd setup and great head turning looks.a pleasure to drive i took our old one across three countries on a road trip.Parts are easy to find with so many parts sellers out there and Nissan still sell new parts for these cars.also the Nissan s13 parts often fit.
The Chaser lovely car i would love the tourer as a family car as well as owning the skyline,nice big cars and offer a nice bit of turbo power and
mixed with great looks also look at the mark II version of these cars.
The del sol look really nice and there are some nice kits out there although compared to the others is very small.nice cars tho and very nippy.
Other models i would look at are the
silvia s13
180sx
soarer
varietta
corolla
levin
evo
impreza
300zx
integra dc2 dc5
calibra
gt0/3000gt
rx7
rx8
323 turbo
mx6
mx5
s2000
accord
neon
legend
maxima
g35.
350z