Automatic Gearbox Types Explained: Names, Differences and How they Work

Automatic gearboxes are now common across almost every type of car in the UK, but the terminology can be confusing. Drivers see labels like DSG, CVT, EAT8 or semi-automatic and are often unsure what they mean, how the gearboxes differ, or whether they are all the same underneath.

Understanding the differences matters when choosing a car, especially when comparing models, trims, or lease options. Some gearboxes are smoother in traffic, others respond faster on the motorway, and some are better suited to hybrids or electric vehicles.

What is an Automatic Gearbox?

An automatic gearbox changes gears without the driver using a clutch pedal. The system selects the most suitable gear based on speed, throttle input and driving conditions.

Most modern automatics still allow some level of manual control, usually through the gear lever or steering wheel paddles, but everyday driving is fully automatic.

In the UK, nearly all automatic cars fall into one of four main gearbox designs. While manufacturers use different names, the underlying technology is usually shared across brands.

Main Types of Automatic Gearbox

Torque converter automatic

The torque converter automatic is the most established type of automatic gearbox. Instead of a clutch, it uses a fluid coupling to transfer power from the engine to the wheels.

Modern versions are far more efficient than older designs and are known for smooth gear changes, particularly at low speeds and in stop-start traffic.

You will often find torque converter automatics in larger cars and SUVs, as well as many premium models.

Common characteristics:

• Very smooth when pulling away and manoeuvring

• Reliable and well suited to everyday driving

• Uses multiple gears, often six to eight speeds

Common manufacturer names:

• EAT6 and EAT8 in Peugeot and Citroën models

• ZF 8-speed used by BMW, Audi, Jaguar and Land Rover

Dual-Clutch Automatic (DCT or DSG)

A dual-clutch gearbox uses two clutches working together to pre-select the next gear. This allows gear changes to happen very quickly with minimal loss of power.

Dual-clutch automatics are popular in performance-focused cars and are also widely used in everyday hatchbacks and SUVs.

Common characteristics:

• Fast, responsive gear changes

• Efficient at higher speeds

• Can feel less smooth at very low speeds in heavy traffic

Common manufacturer names:

• DSG in Volkswagen, Skoda and SEAT

• DCT in Hyundai and Kia

• PDK in Porsche models

CVT Automatic

A CVT, or continuously variable transmission, does not use fixed gears. Instead, it adjusts seamlessly across a range of ratios to keep the engine running efficiently.

This type of automatic gearbox is often used in hybrids and smaller petrol cars, where smoothness and fuel efficiency are priorities.

Common characteristics:

• Smooth, uninterrupted acceleration

• Engine revs may rise without noticeable gear changes

• Well suited to urban driving and hybrid systems

CVT gearboxes are commonly found in:

• Toyota

• Lexus

• Honda

Semi-Automatic Gearbox

A semi-automatic gearbox sits between a manual and a fully automatic system. It removes the clutch pedal but is based on a manual gearbox design with automated gear changes.

These systems were more common in older models and entry-level cars and are now less widely used than other automatic types.

Common characteristics:

• No clutch pedal

• Slower and less smooth gear changes

• More noticeable pauses between gears

Automatic Gearbox Names Used by Manufacturers

Many drivers search by gearbox name rather than gearbox type. This can make things confusing, as different names do not always mean different technology.

In most cases, the name is simply a branding term used by the manufacturer.

Common examples include:

• EAT6 and EAT8 for torque converter automatics

• DSG for dual-clutch gearboxes

• ZF 8-speed for torque converter systems supplied by ZF

• Twinamic used by Smart

• PDK used by Porsche

Two cars with different gearbox names may use the same underlying design and offer a very similar driving experience.

How to Check What Gearbox is in Our Car

If you are unsure which gearbox your car uses, there are several reliable ways to check:

• Look in the vehicle handbook or specification sheet

• Check the manufacturer’s website for your exact model and trim

• Use a vehicle data check based on the registration number

• Ask a dealer or car leasing provider for the full technical specification

This is particularly useful when comparing automatic cars for personal car leasing, where gearbox type can affect comfort and driving feel.

Are Automatic Cars More Common on Lease?

Automatic gearboxes are now standard on many new cars, especially electric vehicles, hybrids and higher-spec trims. As a result, automatic models are widely available across manufacturer leasing ranges, often with little or no price difference compared to manual versions.

For many drivers, choosing an automatic is now the default rather than an upgrade.