Volkswagen Group A platform
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It debuted in 1974 and was originally based on the engineering concept of the Volkswagen Golf Mk1, and is applicable to either front- or four-wheel drive vehicles, using only front-mounted transverse engines.
Volkswagens based on this platform have been referred to by generation number, i.e. the first Golf version would be referred to as an "A1 Golf". Often "Mk*" ("Mark") is substituted for "A*", but this can be misleading: For example, the Mk1 and Mk2 Sciroccos are both based on the A1 platform.
Under Volkswagen's revised platform naming system, the "A4" platform is now known as the PQ34 platform, and what would have been called the A5 platform is officially the PQ35 platform. The new nomenclature is derived as follows:
- A indicates a passenger car platform
- 5 (quer) indicates a transverse engine
- 0 indicates the platform size or class
- 0 indicates the evolution or generation
The A platform has been replaced by the MQB platform for new models.
The A1 platform debuted on the MK1 Golf on its launch in 1974, and continued into the early 1990s, when the last remaining models using the platform - the Scirocco and Caddy - were axed.
A1 platform cars (Typ numbers in brackets):
The A2 platform debuted in 1983 on the MK2 Golf, and lasted until 1998, when the original SEAT Toledo (the first Volkswagen-developed SEAT following the Spanish company's takeover by Volkswagen) was replaced.
The Volkswagen Passat B3 was based on a stretched A2 platform. The Volkswagen Corrado VR6, while being an A2 platform car, uses some components from the A3 platform, notably the rear suspension assembly and some front suspension parts.
A2 platform cars (Typ numbers in brackets):
The A3 platform was only used for two models - the MK3 Golf, launched in 1991, and its saloon equivalent, the Vento, launched in early 1992.
A3 platform cars (Typ numbers in brackets):
The A4 platform (though named PQ34 under the new VAG scheme) debuted on the Audi A3 in 1996 and went on to be used in a total of ten different cars over the next two decades.
PQ34 platform cars (Typ numbers in brackets):
The PQ35 platform is designed to be more modular and flexible than previous A platforms. For the first time, a fully independent suspension front and rear will be present in all A platform vehicles. There is also a derivative version of this platform for 'B'-class cars called PQ46.
PQ35 is intended for compact-size vehicles, and PQ46 is an enlarged version for mid-size vehicles, such as the Volkswagen Passat. A common misconception is that the PQ46 generation of the Passat is based on the "B6" (PL46) platform. However, this transverse engined Passat has little in common with the longitudinal engined "B6" Audi A4.
PQ35 platform cars (Type numbers in brackets):
- Audi A3 Mk2 (8P)
- Audi TT Mk2 (8J)
- Volkswagen Touran (1T)
- Volkswagen Caddy (2K)
- SEAT Altea (5P)
- Volkswagen Golf Mk5 (1K)
- Škoda Octavia Mk2 (1Z)
- Volkswagen Golf Plus (5M)
- SEAT Toledo Mk3 (5P)
- Volkswagen Jetta Mk5 (1K)
- SEAT León Mk2 (1P)
- Volkswagen Scirocco (13)
- Volkswagen Golf Mk6 (5K)
- Škoda Yeti (5L)
- Volkswagen Jetta Mk6 (1K)
- Audi Q3 (8U)
- Volkswagen Beetle (A5) (16)
- Volkswagen Eos
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