I'm sorry, Webber is a very good driver but in the upper echelon of motor racing called F1 he is an average driver at best. It is ridiculous to even think he doesn't have the same equipment as Vettel, remember Webber is Mateschitz's favorite. No one in their right mind would even think of not giving Webber the same equipment as Vettel knowing how Mr. Mateschitz feels about him. It's unfortunate for Webber that Vettel came along when he did as Vettel is one of those rare and gifted drivers you rarely see. He's there with Foyt, Andretti, Parnelli, Senna, and Schumacher. It is probably fair to say with Vettel's talent Red Bull has been tailoring the car to his driving style and that may have hurt Webber some. But with 4 straight driving and constructor titles who can argue? The statistic that sticks out in my mind is Red Bull would have won the constructors title this year on Vettel's points alone!
http://www.racer.com/schumacher-vettel-vs-webber-comparison-shocking/article/323021/