It is, yes. As stated in a previous post, it's a mix of Roamer, Vivace, Sunburst and Bastion jbeams and meshes, (where the base car lacks features) but so far it's working alright.
You can make a combination of various cars work well, but you need to be careful about what you are doing. Especially you have to be REALLY careful with support beams, they are easy to miss because most of the time they are set up to only 'work' on hard enough impact, and having wrong values in them can have catastrophic consequences. My advice would be to just redo them entirely depending on where they are needed on this specific car.