Wow you're not kidding. They pay taxes based on displacement!

Thought I'd share this about Mugen:

"...Mugen is owned and run by Hirotoshi Honda - the son of Honda founder Soichiro Honda - who has been the major shareholder in Honda since his father's death.

Mugen was founded in 1973 by Hirotoshi Honda and Masao Kimura (who is now managing director). Its purpose was to design and develop racing engines for sale and to develop engines and parts for Honda road cars.

The company has a strong racing heritage as Hirotoshi Honda began building his own racing car in a workshop at his house, shortly before he graduated from Nihon University in 1965. Kimura is a veteran of more than 50 race victories in Honda sportscars and single-seaters and worked for Honda R&D and then Honda Racing Service before he helped Hirotoshi establish Mugen."