Hmm.. What did I think of Nuts and Bolts.... For me, it's complicated.
The good things about it; it is visually appealing. They took advantage of the next gen console's graphics, and the art team, I think, captured the light-hearted feel of Banjo. The music, too, had that Kirkhope flair. Also the humor and dialogue, while a bit hit and miss, did make me laugh more often than not. The level design was pretty creative, if a bit cramped. This is especially noticeable on the Logbox 720 stage. All in all, it felt like a Banjo game. Also Banjo was in two other Racing games, granted they weren't major Banjo installments, which brings me to:
The bad things about it. While Banjo was indeed a driver/pilot before, the major Banjo titles have always mainly been platformers. I understand Rare wanted to take a different route, but to do it in main title felt very disingenuous to the fans. "Gamers today don't want all this. They just want to shoot things!" Really? Who do you think played your first two titles, L.O.G.? Also, the handling and shooting of the vehicles felt clunky at best, even though it was awesome to strap jets to a boat. The missions got extremely repetitive, as well. I must have launched several score Jinjos by the last world.
All in all, I enjoyed the game for the atmosphere, but am disappointed about what might have been.