also: オタしゃ
noun
otaku car; anime-decorated car
Colloquial term for a car decorated with anime, manga, or game characters, often with figures, stickers, and plushies. Related to 痛車 (itasha), but ヲタ車 emphasizes the otaku owner rather than the 'painful' look.
彼のヲタ車にはフィギュアがたくさん飾ってある。
His otaku car is decorated with lots of figures.
週末になると、ヲタ車が秋葉原に集まる。
On weekends, otaku cars gather in Akihabara.
ヲタク is a spelling variant of オタク (otaku), meaning a person obsessed with anime, manga, etc. ヲタ車 is a compound using this variant.
Compound of ヲタ (ota, a variant spelling of オタク 'otaku') and 車 (sha, 'car'). The ヲ spelling is a stylistic choice common in otaku subculture.