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Even though we do try to avoid using technical terminology across our websites, there maybe times when you may need further help to understand some of the features described on our cars. That's what this glossary is for. Search alphabetically.


Part leather seat upholstery

- Seat coverings are a part leather and part fabric. There is a choice of colour, design and material, depending on the model / trim.

Part leather seat upholstery

- Seat coverings are leather. There is a choice of colour, depending on model / trim.

Passenger airbag de-activation switch

- Airbags are very important part of a car's active safety and have saved thousands of lives since they were invented. But they can also be dangerous and it's important to be able to switch off the front passenger airbag to protect children or small adults.

Pedal Release System (PRS)

- An active safety feature, PRS is standard on most Chevrolet models. In serious frontal collisions, the clutch, brake and accelerator pedals can cause serious injury to the driver of a car, if the pedals are fixed. PRS means that the pedals are released from their fixed positions.

Performance Active Exhaust System

- Performance Active Exhaust comes as standard with the Corvette Stingray in Europe. Not only does it improve performance and provide an outlet for the unmistakable V8 roar but it can be adjusted

Performance Data Recorder

- The all-new industry-exclusive Performance Data Recorder (PDR) — turns your vehicle into a highly sophisticated driving analysis tool. With just two simple clicks, you can record every single aspect of your driving including real-time audio and video, plus up to 30 channels of performance data. Relive your favorite moments on the track, then dive into the data and analyze every turn.

Performance Traction Management

- Performance traction management features five settings tailored to driver skill level and track conditions that can be controlled from the Drive Mode Selector wheel, located on the centre console


- Petrol, known in the US as gasoline or gas, is a fuel type, which, like diesel, is used in internal combustion engines. Petrol engines work slightly differently to diesel engines, which is why you must never put diesel fuel into a petrol engine, or vice versa. Petrol is refined from crude oil.

Pollen filter

- A particulate filter composed of fibrous materials which removes solid particulates such as pollen from the air inside the car.

Power adjustable lumbar support

- Where a car is equipped with power lumbar and side bolster support in the seats. Switches are located on the outer edges of the seat cushion. The power seat moves the seat into the correct position, while the lumbar support adjusts the amount of support to the small of the back. The bolster switch moves the seat back wings closer in/away from you.

Power boot and hatch release

- Power release to open the boot of the car.

Power output

- Horsepower as a term is a throw-back to the earliest days of motoring when a car's power output was measurable against the power of horses. Still in use today, it's a more accurate way of detemining how powerful a car is than the litre capacity of the engine.

Power steering, rack-and-pinion, speed sensitive

- Steering mechanism that consists of a gear linked to a rack that connects to the wheels. When the gear is rotated by the steering shaft, it moves the rack from side to side, turning the wheels. Rack-and-pinion steering generally improves road feel at highway speeds.

Privacy glass, side and rear

- Window coverings to manage sunlight, to provide additional weatherproofing, to ensure privacy or for purely decorative purposes.