Yesterday we looked at the best car design elements of all time, and the responses were as varied as one would expect from such a subjective question. Grilles, tailfins, gullwing doors and one of our personal faves, hood ornaments, all gained some measure of respect from the commentariat. A few tongue-in-cheek mentions were also made of dubious design elements; Pontiac body cladding, for example. So, today we'll flip things around and open it up to the great automotive styling failures. What's the worst car design element ever? We're not going to argue with Pontiac body cladding, which was at its worst on the nightmarish Aztek. Chrysler's out-of-round steering wheel on mid-60s 300s, among others, was a singularly bad idea. How about the toilet-seat rear deck on the above-pictured Plymouth Valiant? And who can argue for the recent fender-vent craze, ranging from "not bad" on the CTS to "laughable" on the Focus. So tell us: What do you think is the worst car design element of all time? QOTD is your chance to answer the day's most pressing automotive questions and experience the opinions of the insightful insiders, practicing pundits and gleeful gearheads that make up the Jalopnik commentariat. If you've got a suggestion for a good "Question Of The Day" send an email to tips at jalopnik dot com.)