Acura builds a good car - we love our MDX. While the NSX might have had an edge on a '94 Carrera with its 272 HP engine, Acura hasn't done much with it since while Porsche has continued to improve the Carrera.
The NSX is .1 second slower to 60, equal through the quarter mile, equal on the skidpad and 1.8 MPH slower through the slalom than a 2002 Carrera per Road & Track.
Both cars stop the same from 60 MPH; the Carrera stops 11 feet shorter from 80 MPH. R&T got 1.6 MPG better mileage with the Porsche, and the Porsche's MSRP was $21,000 less than the NSX. Oh, and the Porsche's top speed was 2 MPH higher, in the event you ever stay in the gas long enough to see 177 MPH.