The EPA has made estimates of about 4,000 lbs across all car types, but of course it’s more accurate to instead focus on weight according to category. The EPA breaks it down into the following categories:
Compact cars - average of 2,900-lbs
Large Cars - average of 3,900-lbs
Compact SUVs - average of 3,600-lbs
Large SUVs - average of 5,600-lbs