Tesla Motors says it’s adding a new “Ludicrous Mode” to high-performance versions of its Model S electric vehicle.

You may have heard about Tesla’s “insane mode“, which accelerates a sedan from 0 to 60 miles per hour in a mindboggling 3.2 seconds.

Musk admitted that customers haven’t been asking for more acceleration, but that the new Ludicrous mode was a way for Tesla to demonstrate its engineering expertise. Existing owners will pay about $5,000 for the upgrade. Ludicrous mode is also close to, but not quite at the acceleration times of a few of the fastest cars available for purchase, such as the Porsche 911 Turbo S. The updated Model S will do 0 to 60 miles per hour in a shocking 2.8 seconds compared to The 3.1 seconds recorded by the P85D Model.

While this option may be Tesla’s lowest priced auto right now, the company plans to launch the $35,000 Model 3 in a couple of years.

By upgrading to the new 89kWh battery, your Model S sedan would effectively become a 90D model instead of the 85D model.

The Ludicrous Mode will also come with a price to match: it’s a $10,000 option for the car, which means you have to really love going fast to upgrade. Elon Musk says that after you factor in government incentives and gas savings, the cost is around $50,000.

George Frey/Bloomberg A Tesla Motors Inc.

Current P85D owners are eligible for the Ludicrous option at a discounted $5,000.

Musk explained how Tesla achieved the breakthrough during the call, saying the company devised a “smart fuse” for the new 90kWh battery pack.

Elon Musk pointed to the positive reception for Insane Mode, which has drawn parallels to roller coasters, as part of the inspiration for upping the ante even further.

Tesla’s first auto was the Roadster. A next-generation Tesla Roadster sports car, due out in four years, will have a mode called “Maximum Plaid”.

As for other cars, Musk said that the firm’s gull-winged SUV, the Model X, will be unveiled in two months and the $35,000 Model 3 will be out in a little over two years.