My Kyosho V-One RR Evolution on-road race car. Spent around $2800 on it in its pictured state, right before I shipped it off to the highest bidder from eBay (for just under half its cost).
Custom airbrushed Lola shell, every part from the Three Racing catalogue including a pile of carbon fibre, and some rare Kyosho Team parts including a World Championship winning billet T6 aluminium chassis and kevlar drive belts. Had an Italian Sirio Evo 2 .12 nitro race engine, made 1.6HP at around 48000rpm, front one way diff and bigger billet pulleys. On paper, it could hit 130km/h at top speed in 2nd, which I did many times down my street and at Hillarys car park. One time, it came unstuck and went backwards into a kerb, and smashed into a million pieces. It put a big dent in my spare parts box, thats for sure!