Hi,
Actually there is a FlexCAN example available. It's based on s32V234 SDK v0.8.1 (EAR) that is currently part of S32DS for S32 Platform only.
S32 Design Studio 2018.R1 for S32 Automotive ARM Platform (Windows/Linux) released!
I'd recommend you to install this version + S32V2xx development package as described in the release announcement. It can coexist with S32DS for Vision (you can have multiple versions of S32DS installed on one machine)
Import S32V SDK example into the workspace by selecting menu File -> New -> S32DS Project from Example:

Note:
The VSDK should be integrated into S32DS for S32 Platform at the beginning of Q2/2019
Hope it helps.
Stan