Such was the case when Jack Parn and Diego Ugaz. We found them on Instagram going by biy_buildityourself where they had nearly 30,000 followers who liked watching them do cool car stuff. As Parn told ...

In theory, Wankel-style rotary internal combustion engines have many advantages: they ditch the cumbersome crankcase and piston design, replacing it with a simple, single-chamber design and a thick, ...