Mercedes has launched a slew of new compact cars this year, including the new CLA, GLB, and AMG GLE53, as well as the updated GLC. Surprisingly, Mercedes still hasn't replaced the entry-level GLA crossover, but that's about to change. We were expecting the next-generation GLA to debut at the Frankfurt Motor Show, but this didn't happen. An LA Auto Show debut has also been ruled out, as Autocar reports the second-generation model will debut online in a few weeks, but a specific date hasn't been confirmed yet. The publication has also revealed some juicy new details after test driving a prototype model.

Compared to the current model, the new GLA is around 0.78 inches shorter. Despite this, the wheelbase has been extended by 1.18 inches to 8.9 feet, allowing for extra rear legroom and an adjustable rear seat, which is also offered as an option in the GLB.

Height has also increased by 3.93 inches, giving the new GLA a more crossover-style look compared to the current model, which looks like a hatchback on stilts. This change will also result in more headroom, particularly in the back.

Inside, the new GLA will have a more premium interior combining elements from the A-Class and GLB, including a new MBUX touchscreen infotainment system and 64-color ambient lighting. Standard equipment will include automatic emergency braking, lane-keeping assistance, speed limit assistance, driver attention monitoring, and keyless ignition. Unsurprisingly, the new GLA will share engine options with its compact SUV siblings, so expect the base model to be offered with a 2.0-liter turbo engine delivering around 220 horsepower and 258 lb-ft of torque.

Power will be sent to the front wheels through either a seven-speed automatic or six-speed manual. A GLA 250e EQ Power plug-in hybrid will also join the line up with a 1.3-liter four-cylinder and electric motor developing a combined 215 hp. A 15.6kWh lithium ion battery will provide an all-electric driving range of over 40 miles based on the WLTP test cycle.

These models will be joined by three more powerful AMG variants in the second half of 2020: a 306-hp GLA 35 4Matic, 387-hp GLA 45 4Matic, and 415-hp GLA 45 S 4Matic. The new GLA will also form the basis of the new EQA electric crossover that's expected to launch in 2021.