Most of the supported cars in Minis Set 1 - 4 have support errors that Lychee Slicer cannot correct. 3d Builder can fix them, but it takes quite a chunk of time to repair each model.
Here is an image after trying to repair Spark 014 in Lychee. Next to it is a version I repaired in 3d Builder.
Can we expect to see repaired versions of these files?