As the name implies, a supercar is suppose to thrill its owner in every possible regard. While Spyker’s C8 Aileron is said to be a big improvement over the old C8, power output is still a relatively modest (by supercar standards) 405 horsepower.

That’s less than you get in a new Ford Mustang GT, which certainly isn’t helping sales of Spyker’s luxury supercar. While the Swedish automaker continues to use the 4.2-liter Audi V-8 in its current C8 Aileron production, it’s been looking for a new partner to supply engines with additional output.

Until recently, that partner looked like it may have been General Motors. As explains, Spyker has successfully tested the 556-horsepower, 6.2-liter supercharged LSA V-8 from the Cadillac CTS-V in the C8 Aileron. GM likely would have been willing to supply engines, but then Spyker filed a $3 billion lawsuit against the Detroit automaker.

We’re fairly certain that the pending litigation will end any ongoing relationship between GM and Spyker, which leaves the boutique automaker back at square one in its search for a new engine supplier. At least Spyker knows what it wants, favoring a V-8 over a V-6 and requiring “at least” 500 horsepower to provide sufficient thrust for the C8 Aileron.

Given Spyker’s recent financial woes (primarily tied to Saab's demise), we imagine the list of qualified and willing suppliers is a short one indeed.