1992 was the final year of the third generation Camaro. A "25th Anniversary Heritage Edition" option had been planned with Corvette aluminum cylinder heads, tubular exhaust headers, and 6-speed manual transmission, but this was scrapped in favor of a "Heritage Package" option (RPO Z03) which amounted to nothing more than a graphics package of badges and rally stripes. All 1992 Camaros received a "25th Anniversary" badge on the dashboard. The 1992 version of the Camaro B4C (Special Service Package) got the addition of 1LE brakes and suspension, making it perhaps the best performing third generation Camaro available with air conditioning. A total of 589 B4Cs were sold. The B4C option was also deemed popular enough to be carried on to the fourth generation model.
1992 Z28s received some of the "leftovers" from its Corvette cousin, which switched from Tuned Port Injection to the updated LT1 engine series in 1992. Some Z28s received the cast aluminum style intake runners from the TPI Corvette instead of the regular Camaro smooth tube ones.
The RPO 1LE option combination, identical to the previous year in specification and option requirements, had its highest production year of the third generation Camaro, with 705 cars so equipped. As mentioned, the 1LE brakes were included with B4C in 1992, accounting for 589 of the 705 built. This means that only 116 "true" 1LE-only cars (A/C delete, non-Special Service Package) were built for the year.
It should be noted that the vast majority of the 1LE cars built during the 1989-1992 period were very sparsely equipped vehicles. Since they were intended for racing, where extra weight is a disadvantage and interiors are often gutted after purchase, most were very lightly optioned. The majority of 1LE Camaros had the base interior, with no power options, cruise control, or even floor mats. Some were even built without radios (201 cars were built as "radio delete" in 1992). An "oddball" Camaro equipped with a combination of both RPO 1LE and luxury or appearance options, such as a deluxe leather interior or the Z03 Heritage Package, is therefore a rare and potentially collectible vehicle.
This was also the last year of production at the Camaro's assembly plant in Van Nuys, California. The last third-generation Camaro produced was a red Z28 coupe on August 27, 1992 that features signatures of the assembly line workers and is privately owned.
Source: Wikipedia, 2011