If you can afford the petrol comsumption , get a RX-7 .....or not a silvia , i had RX-7 gen 2 & 3 , both are really nice cars but u wont get much miles to the gallon
RX-7 too thirsty...besides i think the later gen models had overheating issues...
go for the silvia..besides a sr20det engine latr on is perfect for whatever fun your loooking to get out of your car