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Video: Tesla Model S Alpha undergoes on-track testing

The electric-car wizards at Tesla have released a sneak peek of the upcoming Tesla Model S Alpha undergoing on-track drive testing. The video provides a quick glimpse of three eerily quiet sedans, but not much more. Scintillating it's not, but it's nice to see the Model S Alpha sedan getting closer to production.

2015 BMW M4 Convertible debuts: drop-top fun priced from $73,425

The 2015 BMW M4 Convertible made its official debut at the New York auto show yesterday. While the details of the high-octane hardtop didn't exactly catch us off-guard (see our full breakdown here), we now know how much it'll cost to feel the wind in your hair as you launch from 0-60 mph in 4.4 seconds: $73,425, to start. Complete pricing will be available closer to the M4 Convertible's sale date, which is “late summer” 2014, according to BMW.

Coming soon: A bigger, better autoweek.com

First, we want to thank all the readers who have helped make autoweek.com what it is today -- we've worked hard to ensure no nugget of cool car news falls through the cracks, and we've been rewarded by a 100 percent increase in visitors over the past two years. That said, we also know there's a lot about our site design that can be improved. Articles don't "pop" the way they should, the home page is far too busy, and our commenting system is…well, let's just say that anything relying on Facebook deserves a healthy dose of skepticism.