I see the error in the Vue entry, but I'm not seeing the Prius 2 mistake. I see the average is still 47+. I do agree with you and wish some of these entries could be weeded out. Included in these would be the obvious mistakes as you mentioned. Also, those people that enter 1 tank and then never visit the database again. How is that any kind of accurate representation?

The HCH II database has 13 entries with less that 100 miles (including two entries of 1 mile, one of 6 miles and one of 9 miles). There are 123 entries with less than 1,000 miles. This is 22%. Of course, people have to start somewhere, but only 28 of the 123 entries below 1,000 miles are active. Why are the low miles driven and inactive entries not deleted? Do they serve any purpose? What is the point of leaving in these entries of a 33.6 mpg over 1 mile, 19.9 mpg over 6 miles, etc.?

Just as hypermilers are not recognized until 3,000 miles, there should be some kind of limits used before a vehicle is considered in the average of a given class of vehicles in the database.