The B44 series of cars is widely considered one of the least durable race level 1/10th cars out there. If you want a 4wd buggy that is known for durability, go with the Xray. Part support may be on-online only, but the buggy, from what I hear, is very durable. But like I said... this is only a good choice if there is a predictable 4wd buggy class to race in. If not (there isn't here in the NW), it is a poor choice for a chassis.