Just got back from Phoenix, AZ where I got to tag along with Aston Martin engineers as they performed hot climate testing on the DB11!Here's some of what I learned:- DB11 is most extensively tested vehicle in company's history: 150 test vehicles have been built.- Plan is to drive over 15,500 miles in the span of a few weeks under the hot Arizona sun. DB11 will also spend one week in Las Vegas.- They're continuously collecting over 250 individual channels worth of data simultaneously.- Most important concern is if the air conditioning can get to and maintain the desired temperature quickly and efficiently -- they did discover there needed to be better balancing of airflow distribution between face and feet vents.- DB11 handles and sounds amazing! Acceleration video:- Depending on who you ask, DB11 is about 85 - 95% complete. This phase is fine-tuning the software/handling characteristics of the car.Learn more next week when I publish the full story on the front page. If you have any questions, post them below and I'll answer to the best of my knowledge.Enjoy some behind-the-scenes photos!