Question: What is the abbreviation for the platform debuted when Rock On 2002 was mamufactured?

Context articles: Volvo XC90
GM Epsilon platform
Ford C1 platform
Chrysler D platform
Nissan FM platform
Ford DEW platform
GMT900
Bentley Azure
Volvo Scalable Product Architecture platform
GM Delta platform

The Volvo XC90 is a luxury crossover SUV manufactured and marketed by Volvo Cars since 2002 and now in its second generation.
Epsilon is General Motors' mid-size front-wheel drive automobile platform.
 The architecture was developed by Opel, and debuted in the 2002 Opel Vectra and 2003 Saab 9-3.
 Since this platform falls squarely in the center of the worldwide automobile market, GM plans to produce a great many Epsilon vehicles with over a dozen variations.
 s of 2005 , it was GM's highest volume worldwide platform.
 Even after the dissolution of the GM/Fiat partnership, both companies retain the rights to continue developing Epsilon-derived models.
The Ford C1 platform (for "compact class") is Ford's global compact car automobile platform.
 It replaces Ford C170 platform and Mazda's BJ platform.
 The C1 platform debuted with the European Ford Focus C-Max compact MPV in early 2004.
 The platform is designed for either front- or all wheel drive.
Chrysler's D platform was derived from the Mitsubishi Galant and used by the front-wheel drive and all-wheel drive Diamond Star Motors cars in the 1990s.
 The original D platform debuted in 1990 and was refreshed in 1995 as the PJ platform.
 Another DSM platform, the FJ platform, debuted in 1995 for use in the Chrysler Sebring and Dodge Avenger.
The Nissan FM platform is a modern FR automobile layout.
 The name is derived from the "front midships" location of the engine, with its center of mass located behind the front axle centerline, shifting weight to the middle of the car, leaving the front suspension less encumbered.
 The engine is pushed as far back to the firewall as possible, creating a weight distribution close to 50:50 and enabling the front wheels to be placed close to the corners for better handling.
 This platform debuted with the 2001 V35-series Nissan Skyline, and was then used as the basis of nearly all of Nissan's rear and all-wheel drive applications.
 The platform was revised for use in the JDM Nissan Fuga/USDM Infiniti M35/45, being stretched in wheelbase and reinforced for additional torsional rigidity, a version referred to as the "enhanced FM" platform.
 The GT-R is built on Nissan's Premium Midship (PM) platform, an evolution of the Front Midship (FM) architecture.
The Ford DEW platform (or DEW98) is Ford Motor Company's midsized rear-wheel drive automobile platform.
 The D/E nomenclature was meant to express an intermediate size between D- and E-class vehicles, while the W denoted a worldwide platform.
 The platform was developed by both Ford and Jaguar engineers, and debuted in the Lincoln LS sedan.
The GMT900 truck platform debuted at the 2006 North American International Auto Show, as basis for the next generation of General Motors full-size pickups and SUVs, and replacements for the GMT800 vehicles.
 The first GMT900 vehicle introduced was the next-generation Chevrolet Tahoe.
The Bentley Azure is a large, four seater convertible built by Bentley Motors Limited at its factory in Crewe, England.
 The model debuted in 1995 on the Bentley Continental R platform and was produced until 2003.
 After a three-year break a completely new version powered by a significantly updated engine and riding on the newer Arnage platform debuted in 2006.
 According to 2009 research by internet company Yahoo!, the Azure is the fourth most fuel consuming car on sale in the United Kingdom.
The Volvo Scalable Product Architecture (SPA) platform is a global full-size unibody automobile platform developed and manufactured by Volvo Cars.
 It debuted in 2014 when the second-generation Volvo XC90 was released.
Delta is General Motors' compact front-wheel drive automobile and crossover SUV platform, a successor to the GM T platform; it also replaced GM J platform and the Z platform used by the Saturn S-Series.
 The platform debuted in the 2003 Saturn Ion.
 Vehicles of this platform generally carry the symbol "A" in the fourth digit of their VINs.