Thanks to its 789-hp, 6.5-liter, naturally aspirated V12 engine, the 812 Superfast is the fastest road-going car Ferrari has ever built in its 70-year history. A successor to the F12, the 812 can reach 0-62 mph in just 2.9 seconds and a top speed of over 221 mph. Unsurprisingly, it doesn't come cheap, with prices starting at $315,000 when it goes on sale. And now you can buy an even more expensive model, but this one has a rather significant drawback – it doesn't have an engine.

Spotted by Drivetribe, what you're looking at here is a 1:2 scale Ferrari 812 Superfast that was used in wind tunnels to test the car's advanced aerodynamics. Being an official Ferrari scale model, the 812 Superfast was hand-made from carbon-fiber and "other prototypal material," and was used during different stages of the supercar's development to "test and improve the computational fluid dynamics results inside the wind tunnel." The sales description says it was part of "Ferrari's ongoing commitment to continually improving performance with each new model, both in terms of speed and vehicle dynamics for a more exhilarating driving experience."

Measuring 7.6-feet long and weighing 200 kg, it even has exposed screws and handwritten markings woven on the body. The scale model will be sold alongside other exquisite Ferraris on September 9 at a special auction taking place at the Italian automaker's Maranello Factory, where it's estimated to sell between $337,000 and $385,000. That's a lot of money for a fancy lawn ornament. To put that in perspective, you can buy an actual, working Ferrari supercar with a sublime-sounding V12 for less money. And we thought Bugatti scale models were expensive.