Your online dealership reviews is the piece that can make or break a car sale. Research "discovered 54 percent of online buyers read online reviews before making a purchase". The first place potential shoppers will see those reviews is on your Google My Business listing. It's the first impression you are giving to every shopper.
It's commonly thought that the quantity of reviews you receive can help you rank higher in a local pack search. Google new update is a quality filter for the local pack. Now, when someone is searching for the "best car dealer in Los Angeles" or "great place to get my oil changed in Redondo Beach" the local pack will only feature business that have a 4 star rating or higher. Try any sort of positive adjective and you will see the same filter. Since this filter doesn't look at quantity of reviews, a dealership with a high review could be ranked above in the local pack from a dealership with more reviews.
The new focus on review quality shows the importance of focusing on positive reviews for your dealership. Remember to always follow the Google Best Practices for Getting Reviews when asking for reviews. Those guidelines will ensure you don't have reviews flagged.