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BMW X4
The BMW X4 is a compact luxury SUV with a fastback roofline built by BMW on the X3's platform from 2014 until 2025, marketed as a Sports Activity Coupé.
BMW X5 (E53)
The BMW X5 (E53) is the first generation of BMW's mid-size luxury SUV, produced from 1999 to 2006 and marketed as the world's first Sports Activity Vehicle.
BMW X5 (E70)
The BMW X5 (E70), also known as the BMW E70, is the second generation of BMW's mid-size luxury SUV, produced in South Carolina from 2006 to 2013.
BMW X5 (F15)
The BMW X5 (F15), also known as the BMW F15, is the third generation of BMW's mid-size X5, built from 2013 to 2018 at Spartanburg, South Carolina.
BMW X5 (G05)
The BMW X5 (G05) is the fourth generation of BMW's mid-size X5 SUV, produced at Plant Spartanburg from 2018 until a 2023 facelift and 2026 replacement.
BMW X5 (G65)
The BMW X5 (G65), sold in electric form as the BMW iX5, is the fifth generation of BMW's midsize luxury SUV, introduced in 2026 with five drive types.
BMW X6
The BMW X6 is a mid-sized luxury crossover coupé introduced by BMW in 2008 as the world's first Sports Activity Coupé, built in Spartanburg, South Carolina.
BMW X7
The BMW X7 is a full-size, three-row luxury SUV built by BMW at Plant Spartanburg, South Carolina, sold since 2019 as the largest and most expensive SUV in the lineup.
BMW xDrive
BMW xDrive is BMW's all-wheel-drive system, introduced in 2003 on the X3 and X5, which uses an electronically controlled clutch to vary torque between the front and rear axles.
BMW Z
The BMW Z series, whose Z stands for Zukunft (future), is a family of BMW two-seat roadsters built from 1988 to 2026, comprising the Z1, Z3, Z8, and Z4.
BMW Z1
The BMW Z1 is a two-seater roadster produced by BMW from 1988 to 1991, remembered for its vertically sliding doors and as the first of BMW's Z cars.
BMW Z3
The BMW Z3 is a two-seat roadster BMW produced from 1995 to 2002, the first model built at its Spartanburg, South Carolina factory and James Bond's car in GoldenEye.
BMW Z4 (E85)
The BMW Z4 (E85) is the first generation of BMW's two-seat Z4 roadster, built in Spartanburg, South Carolina from 2002 to 2008 as the successor to the Z3.
BMW Z4 (E89)
The BMW Z4 (E89), also known as BMW E89, is the second generation of BMW's Z4 roadster, a two-seat convertible produced from 2008 to 2016 with a retractable hardtop.
BMW Z4 (G29)
The BMW Z4 (G29) is the third generation of the BMW Z4 roadster, a two-seat soft-top sports car built by BMW from 2018 to 2026.
BMW Z8
The BMW Z8 (E52) is a two-seat roadster produced by BMW from 2000 to 2003, James Bond's car in the 1999 film The World Is Not Enough.
Bobber (motorcycle)
A bobber is a custom motorcycle, or factory bike styled after one, with a shortened rear fender and stripped parts, popular in 1950s and 1960s America.
Body-on-frame
Body-on-frame, also called separate or ladder chassis, is a vehicle construction method where a separate steel frame carries the mechanics and a distinct body is bolted on top.
Bollard
A bollard is a sturdy vertical post installed to control road traffic, protect people and property from vehicles, or, originally, to secure a ship's mooring line.
Bolt (company)
Bolt, formerly Taxify and mTakso, is an Estonian mobility platform founded by Markus Villig in Tallinn in 2013, offering ride-hailing, scooter rentals, car-sharing, and delivery services.
Boozefighters
The Boozefighters Motorcycle Club, founded in 1946 in Los Angeles by Wino Willie Forkner and other World War II veterans, is one of the oldest active motorcycle clubs.
Borgward
Borgward was a Bremen-based German automobile and commercial vehicle maker founded by Carl Borgward, known for the Isabella before its insolvency in 1961; the name was revived in China from 2015.
BorgWarner
BorgWarner Inc., founded in 1928 as the Borg-Warner Corporation, is an American automotive parts supplier in Auburn Hills, Michigan, making turbochargers, drivetrain components, and electric drive systems.
Bōsōzoku (暴走族)
Bōsōzoku (暴走族, "running-out-of-control tribe") is a Japanese youth subculture of motorcycle and car gangs that ride in loud convoys, peaking in the 1970s and 1980s before sharp decline.
Boss 302 Mustang
The Boss 302 Mustang is a high-performance variant of the Ford Mustang built for 1969 and 1970 as a Trans-Am homologation car, with a 290-hp 302 V8.
Boss 429 Mustang
The Boss 429 Mustang is a limited-production Ford Mustang SportsRoof built in 1969 and 1970 to homologate Ford's 429 cubic-inch semi-hemi V8 engine for NASCAR racing.
Bottleneck model
The bottleneck model is an economic model of peak congestion, formulated by William Vickrey in 1969, in which drivers queue at a fixed-capacity point and trade queuing delay against arriving early or late.
Bottom bracket
The bottom bracket is the bicycle component, in the frame's shell, carrying the bearings and axle on which the pedal cranks rotate; it comes in many incompatible standards.
Bottom dump truck
A bottom dump truck, also called a belly dump, unloads gravel, sand, and asphalt through clamshell gates in the trailer floor, dropping it in an even windrow.
Box junction
A box junction is a road marking of yellow cross-hatched lines that drivers may not enter unless they can clear it, used in the UK, Ireland, and Hong Kong.