Sequential manual transmission

[1] It produces faster shift times than traditional synchronized manual transmissions, and restricts the driver to selecting either the next or previous gear, in a successive order.

Underbones, however, often use a semi-automatic transmission with an automatic centrifugal clutch, but will still retain the conventional foot-operated gearshift lever, such as the Honda Super Cub.

This was closely followed by WRC Rally cars in 1997, 1998, and 1999, and also the Porsche LMP1-98, Nissan R390 GT1, Toyota GT-One, and the BMW V12 LM' and LMR Le Mans Prototype racecars in 1998 and 1999.

Touring cars have also used sequential manual gearboxes; starting with the European DTM series in 2000, which used it for 12 seasons, until a switch to a paddle-shift system in 2012.

[14][15][16][17] Due to the high rate of wear and abrupt shifting action, sequential manual transmissions are rarely used in passenger cars, albeit with some exceptions.

Sequential manual transmission shifting animation
Gear shift lever on a motorcycle (above the toe of the rider's boot)