What's The Best Sub-$1,000 Upgrade For Your Car?

You don't need tens of thousands of dollars to fix your car up. Little changes can make a world of difference.

If it were us, we'd spend our money on a couple months of autocross. Fix the driver first, and you'll have a car that's faster and safer, too.

We already know the ten best upgrades for under $100, but what's the best thing you can buy for your car for less than a grand?

(QOTD is your chance to address the day's most pressing automotive questions and to 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.)

Photo Credit: Eddie