Editing GMC Syclone (section)

==Special editions==
There were two special-edition 1991 Syclones offered by third parties:

===Marlboro Syclone===
[[File:1991GMCMarlboro.jpg|thumb|The 1991 Marlboro Syclone]]

The special-edition [[Marlboro (cigarette)|Marlboro]] Syclone was the grand prize for the ten winners of The Marlboro Racing '92 Contest. To enter the sweepstakes, a form was filled out which included a questionnaire. All ten trucks were provided to [[American Sunroof Company]] (ASC), by Shinoda Design Associates, Inc., in conjunction with Phillip Morris, Inc. With the help of [[Larry Shinoda]], designer of the Corvette Stingray and Boss Mustang, a transformation of the originally black Syclones took place.<ref name="HMM-SS"/> All ten of the Marlboro Syclones were among the 2,995 Syclones built in 1991 and started life as a standard black production Syclone.<ref>{{Cite web|date=2020-04-06|title=1991 GMC Syclone Marlboro Edition {{!}} International SyTy Registry|url=https://internationalsytyregistry.com/historical-truck-info/conversion-trucks/1991-gmc-syclone-marlboro-edition/|access-date=2021-01-09|language=en-US}}</ref> 

Marlboro Syclone custom features include:<ref name="HMM-SS"/>
*[[Targa top|Targa-style]] roof panel with mounts in the pickup bed (roof converted by ASC)
*Slide-down rear window assembly (installed by ASC)
*Guidon hard [[tonneau]] cover
*[[Boyd Coddington]] "Cobra" wheels with Marlboro-emblem center caps and Goodyear Eagle GS-C tires
*PPG "Hot Licks" red paint, with white strobe stripes provided by Graphik Concepts
*[[Recaro]] leather seats with Simpson 5-point racing harness
*Custom [[Momo (company)|MOMO]] "Evolution" steering wheel
*Sony sound system
*PROMPaq performance chip and Borla [[stainless steel]] exhaust
*Bell Tech suspension which lowered the truck by three inches
The ten grand prize winners of the Marlboro Sweepstakes not only won a 1991 GMC Syclone Marlboro Edition truck, but were treated to an all-expenses-paid day of racing alongside the Indy racing team and pit crew with a VIP access and tours, pit passes, photo session with the Marlboro Indy team, and a prize pack full of various Marlboro apparel.  After the raffle had taken place and the trucks claimed by the winners, Phillip Morris had each truck delivered to an allocated dealership nearest to each winner’s residence. The winners were responsible for luxury taxes and fees.

===Indy Syclone & PPG Syclone ===
[[File:PPG Syclone pace car press photo.jpg|thumb|PPG Syclone Pace Truck]]
	
Three ''Indy Syclones'' were used at the [[Indianapolis 500]] race on May 24, 1992, with the only modification being a sticker package. One of these Indy trucks was later converted into the [[PPG Industries|PPG]] ''Syclone Pace Truck'' (though it was not the [[List of Indianapolis 500 pace cars|official pace car]]) with significant modifications to be used on the track, including a multi-colored silver, magenta, and aqua paint scheme, and a molded in light bar in the roof, a [[racing fuel cell]], a built-in halon fire suppression system, water-cooled brakes, and color-matched leather interior to the exterior paint scheme. The bed has a multi-piece tonneau cover that folds with the tailgate in the fashion of an accordion to reveal the fuel cell, batteries, and halon canister mounts. The PPG Syclone<ref>{{Cite web|title=GMC Syclone – 1991 PPG Pace Truck – PPG Pace Cars|url=https://ppgpacecars.com/gmc-cyclone-1991-ppg-pace-truck/|access-date=2021-01-09|language=en-US}}</ref> was retired to the GM Heritage Collection where it was stored and occasionally taken out for car shows until it was auctioned at Barrett Jackson in 2009, selling for $66,000. It is now privately owned, with its last location known to be in Colorado.