I have a comment on the subbing for ep. 1
I don't know if this was a translation error or a factual error in the original japanese script.
when the guy with the Miata ('90-'93 Eunos Roadster) is talking about his engine mods, the subtitle says
"this time, I bored out the 1600 v6 to an 1800"
The engine in those cars was an I4 not a v6.
also the displacment could be noted as 1600cc or 1.6L for none car knowing fans.
EpOx
Actually, it's something else entirely. Someone on IRC brought this up, and got the idea to check the engine code. Mazda Miatas from roughly 1990-1993 used, as you pointed out, a 1.6-liter, 4-cylinder engine. The engine code used for this engine is "B6ZE". The B6 designate it as a 1.6-liter engine, and the rest are for more detailed parameters ('Z' for high-performance and 'E' for electronic fuel injection, put simply.)
Anyway, Tohru was saying that he bored out his 1.6-liter
B6 to a 1.8, using the engine code. Since B-sounds and V-sounds are indistinguishable in Japanese, this got translated as "V6". We're not mechanics or MX-3 nuts, so this very technical detail slipped by. Oh well... "the more you know," and all that. We'll try to keep on our toes with things like this in the future. :P