Mercedes' Lewis Hamilton, right, wants McLaren to retain his friend Jenson Button, left

Lewis Hamilton has called on old friend Ron Dennis to do the "smart" thing and retain "star quality" driver Jenson Button. Button heads into Formula One's off-season still unsure whether his 15-year career in the sport is over or if he will be handed a new contract by McLaren.

http://ift.tt/1vaDGD9