Nothing says "fill 'er up" quite like these custom fuel doors on itasha seen in the parking lot at Comiket last weekend. Got high-octane? This is the gas tank! Please insert gently Regular fuel prohibited The gas tank is on the other side Suiseiseki's face is a little... heehee heehee... high-octane High-octane Creamy, thick high-octane vehicle Lots more photos from the parking lot: 1, 2, 3 [Via: