The side sill panels with matte titanium grey inserts, the "TURBO AMG" lettering on the front wings and the aluminum roof rails lend the GLA 45 AMG a special touch.

In standard specification the GLA 45 AMG runs on 5-twin-spoke AMG light-alloy wheels painted titanium grey with high-sheen finish, mounted with tires of size 235/45 R 19. As an optional extra from the AMG Performance Studio, customers can opt for larger 10-spoke AMG light-alloy wheels with tires of size 235/40 R 20 – these are available painted titanium grey with high-sheen finish or painted matte black with high-sheen rim flange.

The AMG high-performance braking system with vented, cross-drilled brake discs all-round and grey-painted brake calipers provides for spontaneous and reliable deceleration. Red brake callipers are available as an optional extra.

The AMG sports exhaust system in the GLA 45 AMG features large pipe cross-sections and an automatically controlled exhaust flap: this technology reconciles the two conflicting goals of a dynamic driving experience and hallmark Mercedes suitability for long-distance driving. The flap in the rear silencer is continuously adjusted under map control according to the driver's performance needs, load condition and engine speed. The two rectangular chrome-plated twin tailpipes on the AMG sports exhaust system emit a fascinating exhaust note, which is particularly impressive during powerful acceleration. An AMG Performance exhaust system, also equipped with an exhaust flap, is available as an optional extra. Customers opting for this system will experience an even more appealing and distinctive engine sound.

The 3-spoke nappa leather multifunction sports steering wheel with red contrasting topstitching, perforated leather in the grip area and steering-wheel shift paddles allows for perfect vehicle control.

Performance seats upholstered in ARTICO man-made leather/DINAMICA microfiber for driver and front passenger, with more strongly contoured seat shape for enhanced lateral support and with integral head restraints, red designo safety belts.

The AMG instrument cluster with 2-tube design and central color display, AMG main menu and RACETIMER is on hand to provide information to the driver. On opening the door, the driver is greeted by the AMG start-up screen.

The trim of the instrument panel is of brushed aluminum and, in tandem with the brushed stainless-steel AMG front door sills, emphasizes the high-grade, exclusive ambiance inside the GLA 45 AMG.

The AMG DRIVE UNIT is the central control unit for all functions relating to driving dynamics.

A special feature designed to enhance dynamic performance and driving enjoyment is so-called "Momentary M mode". In C and S mode, this enables the driver to activate manual mode ("M") without having to remove a hand from the steering wheel, by pressing the "up" or "down" shift paddle once. In Momentary M mode the driver experiences the dynamism and performance of gear-shifting in manual mode in all of the automatic driving programs, with automatic up- and down-shifting into the bargain. This allows the driver to devote his full attention to the vehicle's impressive performance.

The shift times in manual mode "M" and in Sport mode "S" are similarly sporty in character to those of the SLS AMG GT super sports car. Briefly and precisely interrupting ignition and injection under full load leads to even faster gearshifts with a more emotional sound than ever. In "C" mode (Controlled Efficiency), tangibly soft transmission and engine characteristics support a fuel-efficient and comfort-oriented driving style. The ECO start/stop function is also active in "C" mode.

The AMG SPEEDSHIFT DCT 7-speed sports transmission in the GLA 45 AMG features three distinct transmission modes, a double-declutching function dependent on the transmission mode and a RACE START function for optimum acceleration. The strengths of the dual-clutch transmission include spontaneous gear shifts without loss of tractive power, a tailor-made control strategy based on the AMG SPEEDSHIFT functions, extremely smooth gear shifts, and a high level of efficiency.

The shift times in manual mode "M" and in sport mode "S" are similarly sporty in character to those of the SLS AMG GT super sports car. Quick and precise retardation of the ignition and suppressing injection under full load lead to even faster gear shifts in "M" and "S" modes, with a more thrilling sound. The transmission control fully utilizes the benefits of the direct injection technology right up to the physical limits: the quicker engine response ensures that injection is suppressed with even more precision. The effect: the shift speed and an emotional sound experience have strong potential to fascinate. Another special feature designed to enhance dynamic performance and driving pleasure is the so-called "Momentary M mode" – as seen in the SLS AMG Coupé Black Series super sports car.

In "C" mode (Controlled Efficiency), smooth transmission and engine characteristics support a fuel-efficient and comfort-oriented driving style. In addition, the ECO start/stop function is active in "C" mode.

One of the keys to agile handling is the axle technology: for enhanced driving dynamics, the McPherson front axle on the GLA 45 AMG is fitted with stiffer steering knuckles and new elastokinematics. The four-link rear axle has also been newly developed. Stability and precision of handling are enhanced by the optimized elastokinematics and the rigid connection between the subframe and the body. The AMG sports suspension with specially tuned spring/damper units and bigger anti-roll bars provides for high lateral acceleration and reduced body roll in fast double bends. An AMG performance suspension with firmer spring and damper tuning is available as an optional extra.

The GLA 45 AMG comes with variable AMG 4MATIC all-wheel drive as standard. In developing this all-wheel-drive system, the focus was firmly on performance and dynamic spirit. The all-wheel-drive system transfers the engine power to the road optimally and provides perfect traction – regardless of the weather conditions. It also elevates driving dynamics to the highest level.

The entire drive unit boasts a weight-saving and compact design: the power take-off unit (PTU) is fully integrated into the 7-speed sports transmission and handles the power transfer to the rear drivetrain. A two-part propeller shaft sends the power of the engine to the rear axle as well. In the interests of favorable weight distribution, an electro-hydraulically controlled multiple-disc clutch is integral with the rear-axle differential. The multiple-disc clutch control detects slip at the front axle. A hydraulic pump instantaneously presses the discs together and channels the engine torque to the rear wheels as necessary. All this takes place without the driver noticing. Power distribution is fully variable: during normal driving the GLA 45 AMG uses front-wheel drive for optimal efficiency. When required by the driving situation, the variable all-wheel-drive system splits the torque between the front and rear axles up to a ratio of 50:50 percent.

Typically for AMG, the Electronic Stability Program is configured as a three-stage ESP^®. The GLA 45 AMG comes with three transmission modes: "ESP ON", "SPORT Handling Mode" and "ESP OFF" – enabling the driver to vary dynamic performance according to individual requirements at the push of a button. ESP^® Curve Dynamic Assist is likewise included as standard. During dynamic cornering, imperceptible braking intervention on the rear inside wheel creates a defined yaw moment about the vertical axis. The effect: the GLA 45 AMG turns in precisely and controllably at all times while unwelcome understeer is prevented.

The AMG speed-sensitive sports steering with specific, speed-dependent power assist ensures high steering precision and agility. The AMG high-performance braking system with vented, cross-drilled brake discs all-round and grey-painted brake calipers provides for spontaneous and reliable deceleration. Red brake calipers are available as an optional extra.