What BimmerBits is for

Every BMW owner has had the same conversation. You post your build, and you get “clean!” from someone who cannot tell an E46 from an E90. It tells you nothing.

BimmerBits exists to give you a real answer. Submit your car and enthusiasts score it from 1 to 10 on six separate things — stance, lines, kidney, spec, mods and detail. Each rater's six scores average into a single verdict, and those verdicts together make your car's Roundel Rating out of 10.

Six scores instead of one means the verdict is useful. A build can take a 9 for stance and a 5 for detail, and now you know exactly what to go and fix.

You don't need an account to rate a car. Scores from signed-out visitors count toward the Roundel Rating, at a quarter of the weight of a member's rating.

The reason for the difference is simple: an account is one person, and a browser is not. Weighting visitor ratings lower means a car's score cannot be swung by one person rating it over and over, while still letting anyone passing through have a say.

One rating per person per car either way. Signed in, you cannot rate your own car. If you rate as a visitor and sign in later, your rating is upgraded to full weight rather than counted twice. Once a car has three ratings, a shareable scorecard is generated for it — its photo with the Roundel Rating and all six dimension scores on it — which is also what shows up when someone shares the link.