Reddit will still have higher search hits and Lemmy is outmatched. Dumping content from Reddit just makes this no better than a mirror. It stops real and unique content from hitting the top and this place won't attract new users if they can just use Reddit which at this point has the content directly and is more reliable.
Considering the website is this really a big surprise? OEM radios are crap so car play and Android auto will always be the clear favorite and a website like that most likely has Android users as the primary user base. Both are solid and leagues better than what car manufacturers provide!