So I've played Wreckfest a lot. I have driven pretty much all the cars in the game so I thought I would share my opinion on the top 5 cars to use in B Class. This is just based on what I think and I hope you enjoy it.
The killerbee S is my favorite b class car. Like you mentioned it is a glass cannon but it destroys every other car I've used. It absolutely zips around corners and opponents. It's so easy to dodge dirty drivers.
Venom is a great car for tight corners. I love it on tracks with multiple 90 degree corners because I can get through them faster and have better exit acceleration cause like you said it's planted. It's on my list too but it's not my #1 due to it's trouble with elevation changes at times.
Do you find the windscreen protection efficient (PI, handling cost)? I'm not sure what it does. The best general car is either the Roadslayer GT or Starbeast SS, but I can't make up my mind.
You kept luring us with images of the Sweeper, but there are none to be found in the list. Poor Sweeper! By the way, my favorite clean racing car is the Gorbie. The best all-purpose car is either the Roadslayer GT or Starbeast SS, but I can't make up my mind.
First video from this channel and I already noticed that someone really like them color blue :D Maybe I copy some of the designs, they are just too beatiful