Definitely, it would be nice to be able to use CAN library for projects that includes reading data form car’s ECU. My project uses ELM327, which has some hiccups from time to time - I don’t know wether it’s caused by poor quality of my adapter or by the fact that it’s not fast enough (or maybe it’s the ECU). Problems appear when, for example I try to read a lot of data in short intervals (like 250 ms). I believe that eliminating ELM and talking directly over CAN would be faster.
On the other hand, getting ELM is way cheaper then a specialised CAN module/connector for RPi for example. But hey, I’d definitely like a smoother data refresh on my dashboard 
