It’s not unusual for automakers to use one platform across multiple vehicles. Some platform siblings are no-brainers. Others are surprising combinations. The Lamborghini Urus SUV and Audi A4 sedan may seem to have little in common at first glance, but inside, these two cars share more than just a platform.

The Urus is the least expensive Lamborghini model

The Urus is the cheapest Lamborghini model starting at a cool $222,004. Car and Driver says this is the quickest SUV it has ever lap tested at Virginia International Raceway. This hulking SUV accelerated from zero to 60 in 3.1 seconds and completed the quarter-mile in 11.3 seconds at speeds of up to 121 mph.

The Audi 4.0-L twin-turbo v8 under the Urus’ hood puts out 641 hp. In addition, this five-passenger Lamborghini can tow up to 7,000 pounds, not a feature the brand is known for. All-wheel-drive gives the SUV some off-road proficiency. The Urus offers quick steering and neat cornering at high speed on the trail or the open road.

This SUV may not be the most practical SUV for the typical family. Its near quarter of a million-dollar price tag isn’t the only reason why. It also gets dismal gas mileage. The EPA estimates that the Lamborghini Urus gets 12 mpg city and 17 mpg highway.

The A4 and Urus share a platform and more

Audi and Lamborghini are both owned by the same company, Volkswagen Group. That parent company owns the MLBevo platform, which is the basis for the Porsche Cayenne, Audi Q8, Bentley Bentayga, and the A4. The platform is also shared with the E-Tron, A6, and Q5.

Inside the dramatic cabin of the Lamborghini Urus sits the same 10.1-inch touchscreen infotainment system used in the Audi A4. In addition, this system features Apple CarPlay, Android Auto, available voice command, navigation, Sirius XM Satellite radio, in-car WiFi, and two USB ports for charging devices and staying connected.

The futuristic reconfigurable digital cockpit gauge cluster adds to the Urus’ jet cockpit feel. In the A4, it reflects luxury. On the surface, these two vehicles seem worlds apart, but their interiors are shockingly similar. Once the initial surprise wears off, it’s obvious that the price difference between an A4 and a Urus is not about the touchscreen.

Audi’s A4 delivers a lot of luxury for its price

For the starting price of $40,145, the Audi A4 brings a lot to the table. It’s slower than its platform sibling, accelerating from zero to 60 mph in a respectable 4.8 seconds. It’s powered by a smaller, 2.0-L 4-cylinder turbocharged engine that puts out 261 hp.

The A4’s interior feels more expensive than it is. Features like keyless entry, wireless charging pad, and a memory driver’s seat all add to the high-end feel. Nevertheless, this compact luxury sedan received an NHTSA 5 star overall safety rating. Its rollover safety scores were perfect, and it fared well in front and side collision testing.

Both the Audi A4 and Lamborghini Urus have more in common than meets the eye. It’s a credit to the A4 that it shares many interior features with a car that costs more than the typical house. However, it’s also a detail that makes the entry-level Lamborghini slightly approachable.