How do you tell the difference between S and SI?

Hey, I've been looking at prelude's as a first car for a while now but I've not seen any distinct things that let you know whether its an S or an SI. Is there anything that will let you kno?

S=no spoiler
Si=spoiler (usually)

S=hubcaps (yuck)
Si=alloys

S=f22a (2.2 non vtec) 130 hp
Si=h23a (2.3 non vtec) 160 hp

this is assuming you are looking at 4th gen (92-96)

Carfax. Main thing is the engine, it's a dead giveaway.

i may be wrong but i think ones with the Limited Edition Emblem in the back, the come with h23's and so do Si's

What if he is talking about third gen's.

Well if you are talking about 3rd gen ludes, then the
black bumper covers= S
Carborated engine= S
Fuel Injection= Si
Colour keyed bumpers= Si

mainly the engine just the difference between carbed and fuel injected. And a few trim differences. I like they said.

It's a she and I was talking about 4th gen. I jsut mean when you first look at the car, how can you tell and by how can you tell I'm talking about trim n such, if there was anything only offered in the SI.

Put one of each side and hide the pedals. If you see taillights, yours driving the "S".

what? lol
ace, are your wheels alloys? the ones in your sig, alloys only came on the VTEC model for 4th gen right?

Spoiler, Alloys, Power locks, Memory Drivers seat, 2.3L dohc eng vs 2.2L sohc and what else ???

Jermonsta, see your post now. I have a 92 "S" and a 93 "SI" and the "SI" has alloys. Don't know much about the VTEC's - love too