The BMW 435 is a compact executive car that the German luxury and performance auto manufacturer began producing in 2013, for release as a 2014 model year vehicle. The BMW 435, along with the rest of the BMW 4-Series, is produced at a BMW assembly facility in Germany. The BMW 435 is available as both a two-door coupe and a two-door convertible, and is available in rear-wheel-drive and xDrive all-wheel-drive configurations. The BMW 4-Series was designed to bridge the pricing and performance gap between the 3-Series sedan and the larger 5-Series sedan, while replacing the discontinued 3-Series coupe. The 4-Series, including the 435, is based on the platform of the 3-Series, and is available only in 428 and 435 trim levels.  

The BMW 435i is powered by a twin-scroll turbocharged 3-liter six-cylinder engine that yields 300 horsepower. The 435i coupe is available in both rear-wheel-drive and xDrive with a choice of a six-speed manual or eight-speed automatic transmission, whereas both configurations of the convertible are available only with the eight-speed automatic gearbox. However, availability of specific configurations is limited to select global markets. An automatic stop-start engine function helps the BMW 435i save fuel when the car is at idle. The Environmental Protection Agency rated the BMW 435i’s fuel efficiency at 22 miles per gallon city, 32 miles per gallon highway, and 25 miles per gallon combined when equipped with the automatic transmission. The manual transmission suffers slightly, yielding 23 miles per gallon combined. An automatic 435i xDrive gets 24 miles per gallon combined; a manual 435i xDrive gets 23 miles per gallon.

The 4-Series sits about two inches lower to the ground than the 3-Series, which helps to highlight the cars’ differences. A sleeker roofline and aerodynamic details also distinguish the 4-Series. The 435i rests on 18-inch wheels and comes outfitted with xenon headlights, fog lamps, a sunroof, eight-way power front seats with driver memory settings, a leather steering wheel with tilt and telescoping adjustability, dual-zone automatic climate control, Bluetooth wireless integration, a 6.5-inch display screen in the center console for the BMW iDrive electronic control interface, an audio system featuring a CD player and USB and iPod integration, and the BMW Assist emergency safety and communications system that features automatic crash notification, stolen vehicle recovery, and roadside assistance. There are also several equipment packages for the 435i. Some of these packages feature different wheel designs (with available 19-inch wheel upgrades) and interior trim configurations. Sport and M Sport provide performance tires and front seat upgrades, and M Sport also offers upgraded suspension tuning and components. Premium adds keyless entry, keyless ignition, satellite radio, power lumbar front seats, and leather upholstery. Technology adds an upgraded screen in the center console, a navigation system, a head-up display, and BMW Apps, which help smartphone apps integrate with the car. A lighting upgrade package adds LED headlights with automatic high beam control. Buyers can also equip a new 435i for cold weather, adding heated seats and a heated steering wheel. Several driver assistance options add features such as cameras, parking sensors, blind spot monitoring and speed limit information. Other optional equipment includes upgraded brakes, upgraded suspension, adaptive cruise control, and a 16-speaker Harman Kardon audio system. Standard safety equipment on the BMW 435i includes anti-lock brakes, traction control, stability control, front side and knee airbags, and side curtain airbags.