The second generation was marketed in Europe from 2014 after an eight-year hiatus, using rear-engine or rear electric motor configurations.

This includes the chassis, suspension and a new generation of MIVEC petrol engines, ranging from the three-cylinder 1.1 L (1,124 cc) to the four-cylinder with power up to 80 kW (109 PS; 107 hp).

[6] Depending on the version, it came equipped with ESP, ABS (standard on all models), 14-inch or 15-inch alloy wheels or, optional, 16-inch ones (17-inch on the Brabus model), safety cell, a panoramic sunroof (or, optional, electric sunroof), height-adjustable driver seat, illuminated glove box, radio/CD-player, fog lights, front and side airbags (standard on all models), alarm, automatic air conditioning, electric front windows, and as options - multifunctional steering wheel, shift paddles, heated front seats, lounge seats, navigation and color display with telephone keypad or DVD navigation with a larger display, CD changer, window bags, rain sensor, automatic lights on the system (in poor visibility), leather package.

[7] The sales brochures state that the interior "is designed around the concept of a lounge"; to test this, Top Gear presenters, James May and Richard Hammond spent 24 hours inside the Forfour.

Following Smart's initial success for the fortwo in the U.S., and due to surprisingly high popularity in the Forfour, former Mercedes-Benz exec Rainer Schmückle revealed that officials were considering relaunching the car.

[10] Smartville, where the W450 and W451 build series have been manufactured, underwent a 200 million euro upgrade beginning in mid-2013, in preparation for the C453 Fortwo.

The second generation Forfour, along with the new Fortwo went on sale in October, shortly after their debuting at the Paris Motor Show.

[17] Smart Fourjoy concept includes Smart's signature Tridion cell in polished full-aluminium, tail lights integrated in the Tridion cell, spherical instrument cluster, raised smart lettering milled from aluminium on the side skirts, pearlescent white on the bumpers, front bonnet and tailgate; headlamps without a glass cover, U-shaped daytime running lights, LED front and tail lights, transparent petroleum-coloured moulded wind deflector at the top of the front windscreen, on the A-pillars on the sides and on the rear roof spoiler; rear dark chrome seats, a piping-like line with the same petroleum colour as the plexiglass accents on the exterior, instrument panel with convex surface and touch-sensitive operating functions, spherical instrument cluster, single-spoke steering wheel, two smartphones mounted on the dashboard and on the centre tunnel, 55 kW magneto-electric motor, 17.6kWh lithium-ion battery, 22 kW onboard charger, two electrically driven skateboards on the roof, helmets under the rear seats, a high-definition camera.

[21] In 2013, Daimler projected it would produce an electric version of the Smart Forfour during the second generation of production, for launch in 2015.