Im pretty sure the first Vtec engine was in 1988.

 

95 was the last year MR2's were imported to the US with the "cool" tail lights etc .

Body colored moldings , diff wing , leather interior etc plus 93+ 3SGTE's have a slightly different motor ...

 

"So a Integra Type-R is no different from a 4 cylinder Integra of the same body style."

Well, the body of the Integra Type R is a little different from the Regular integra's..

 

Later 90's M5
95 Mr2(I thought that 96 was the last year imported but not sure)

 

That one that is real fast and looks real good?

 

I think the question, or at least the answers, are far too broad.

First of all, are we talking 90's still?
And body lines don't change within a generation. The '88-92 MX-6 is the same for every year, every trim. Unless you count the black trim around the doors on the GT's, or the different grill on the later models. But is that enough to say it looks different? Not to me.

The 1st gen RX-7 had 2 different engines, and several trim levels. But they all look the same. So are we talking performance, or looks?

For rotaries I'd go with the 1st gen, because that was the first major production rotary in the U.S., and in a car with (to me) timeless beauty. The 3rd gen holds value perhaps, but it never was cheap. Twin turbos complicated the engine for the do-it-yourselfer.

I guess I am really just biased towards Mazda. Looking out my window I see the resemblance to the early Z cars, but looking under the hood I know I have something completely different than any other auto manufacturer dares to produce.

 

The first engine to carry VTEC was the B16A1, the first year of VTEC was 1989, these engines were ONLY IN EUROPE AND JAPAN. Even the Prelude wasn't the first car in the US to have VTEC, the 90 NSX would have been the first. The first USDM Prelude to come with VTEC was in 94, packing the H22A1. Enthusiasts. . .

 

all integras are 4 cyl

 

In 1988 the first vtec engine was unveiled and 1992 was the first year of vtec for the Prelude in japan and europe but 1993 in america but the Prelude was the first Honda with 4ws.