Aggregate data on over 80 vehicle makes and over 1,000 vehicle models.
Our effort to arm consumers with the smog check industry knowledge!
This is the second of the two statistics reports we published in 2018! For the most recent report please visit:
One of the most important decisions in a car buying process "will my car pass the biennial smog check mandated by the DMV"?
At the time of purchasing a vehicle, it is the seller's responsibility to ensure that the vehicle they are selling passes the smog check. But what about subsequent years? That is the new vehicle owner's responsibility. You don't want to get stuck with a vehicle make that is notorious for smog test failures as that can cost you thousands of dollars of cost of ownership of that vehicle.
We have collected and presented (to the right) smog testing data on 32 highest selling vehicle makes.
We limited our findings summary to 32 for statistical relevance. For example, we tested 4 Winnebago's in 2017; all of them passed the smog test, but that data is omitted due to the small sample size. Let's see how to read the smog data: