I ordered all my spare parts on back order and they where back in stock and sent to me with in a few weeks, as you can see from the question below they where in stock 2 weeks ago, I also bought another whole car for spares.
The short course truck is #118B, and if you look at the parts for the 1/18th stadium truck (#A2023T) most of it's parts list as also fitting the 118B. So, this part # PRODUCT ID: 118B-30513 are the front c brackets you are looking for.
Janez, this buggy is copy of Kyosho Mini Inferno. Search Kyosho Mini Inferno parts on Google... hope this helps!
One of the pieces that are broken most of all, I recommend the purchase if you want to use the machine for a long time. It's made of hard plastic strong enough, but the first step I met, I broken it. Very low cost.