Question: Saffire was a high end gear-less motor scooter produced in India by Bajaj Auto, which type of motor vehicle transmission that can automatically change gear ratios as the vehicle moves, freeing the driver from having to shift gears manually, is called?

Context paragraphs:
Dual-clutch transmission: A dual-clutch transmission, (DCT) (sometimes referred to as a twin-clutch transmission or double-clutch transmission), is a type of automatic transmission or automated automotive transmission.  It uses two separate clutches for odd and even gear sets.  It can fundamentally be described as two separate manual transmissions with their respective clutches contained within one housing, and working as one unit.  Although usually operated in a fully automatic mode, many also have the ability to allow the driver to manually shift gears in semi-automatic mode, albeit still using the transmission's electrohydraulics.

Automatic transmission: An automatic transmission, also called auto, self-shifting transmission, "n"-speed automatic (where "n" is its number of forward gear ratios), or AT, is a type of motor vehicle transmission that can automatically change gear ratios as the vehicle moves, freeing the driver from having to shift gears manually.  Like other transmission systems on vehicles, it allows an internal combustion engine, best suited to run at a relatively high rotational speed, to provide a range of speed and torque outputs necessary for vehicular travel.  The number of forward gear ratios is often expressed for manual transmissions as well (e.g., 6-speed manual).

Bajaj Legend: The Bajaj Legend was a popular Indian-made motor scooter produced by Bajaj Auto, Ltd.  First produced in 1999, the Legend was powered by a new environmentally friendly 145cc four-stroke, single cylinder engine, coupled to a four speed transmission operated through a classic Vespa-style grip gear shifter.

Semi-automatic transmission: A semi-automatic transmission (SAT) (also known as a clutchless manual transmission, automated manual transmission, trigger shift, flappy-paddle gear shift, or paddle-shift gearbox) is an automobile transmission that does not change gears automatically, but rather facilitates manual gear changes by dispensing with the need to press a clutch pedal at the same time as changing gears.  It uses electronic sensors, pneumatics, processors and actuators to execute gear shifts on input from the driver or by a computer.  This removes the need for a clutch pedal which the driver otherwise needs to depress before making a gear change, since the clutch itself is actuated by electronic equipment which can synchronise the timing and torque required to make quick, smooth gear shifts.  The system was designed by automobile manufacturers to provide a better driving experience through fast overtaking maneuvers on highways.  Some motorcycles also use a system with a conventional gearchange but without the need for manual clutch operation.

Bajaj Sunny: The Bajaj Sunny was a scooter produced and sold by Bajaj Auto in India.  Bajaj Auto no longer produces this vehicle.  It had a 60  cc engine and a maximum speed of 50  km/h.  It could carry a payload of up to 120 kg.  It had a fuel tank capacity of 3.5 liters.  Like most scooterettes, the Sunny was targeted at teenagers who were eligible to get a driving license for ungeared two-wheelers at 16 years of age.

Bajaj Chetak: The Bajaj Chetak was a popular Indian-made motor scooter produced by the Bajaj Auto company.  The Chetak is named after Chetak, the legendary horse of Indian warrior Rana Pratap Singh.

Bajaj Super: The Bajaj Super was a two-stroke 150 cc motor scooter produced in India by Bajaj Auto between 1976 and 2006.

Bajaj Saffire: Saffire was a high end gear-less motor scooter produced in India by Bajaj Auto.  But if was a complete failure and motor vehicle not roadworthy.

Bajaj Wave: The Bajaj Wave is a motor scooter from Bajaj Auto.  It is a revised Bajaj Saffire.  The Wave offers a 109.7 cc DTS-i engine, CVT transmission and revised body panels.  It has a maximum power of 8 bhp.  It also offers Bajaj's ExhausTEC technology and a ride control switch.

Manual transmission: A manual transmission, also known as a manual gearbox, stick shift, "n"-speed manual (where "n" is its number of forward gear ratios), standard, MT, or in colloquial U.S. English, a stick (for vehicles with hand-lever shifters), is a type of transmission used in motor vehicle applications.  It uses a driver-operated clutch engaged and disengaged by a foot pedal (automobile) or hand lever (motorcycle), for regulating torque transfer from the engine to the transmission; and a gear selector operated by hand (automobile) or by foot (motorcycle).

Supporting paragraphs: Bajaj Saffire Automatic transmission
Answer: automatic transmission