Prelude model extensions: S, SI, SR, etc.

Anyone know much about the different Prelude model extensions like S, SI, SH, SR.

I have a 92 Prelude (automatic) and I think it's an S model because it does not have power locks. Is this correct? On my steering wheel, under the "H" logo there are the letters "SRS". Can someone tell me what this means? Please excuse my ignorance....I bought my Prelude about a month ago (with no manual) and I'm looking to learn as much as I can about it.

Man, I wish I had a Vtec engine.....my 4 Cylinder, 2.2 L engine is the same as my friend's '91 Accord

Also, I have a question about street racing with my automatic Prelude.

At a stop light, what are the best ways to get a quick start, if there are any. My friend sometimes puts his car in neutral...revs the engine to a high RPM, then shifts to drive. I always laugh at what happens but it seems to me that this doesn't give much of a quick start...just a quick jerk foward Plus, is this bad for the car if done too much?

Looking forward to some replies.