Dennis sees echoes of Senna in Button

Britain's Prime Minister David Cameron (C) walks with Ron Dennis (2nd L), the Executive Chairman of McLaren Automotive, racing drivers Lewis Hamilton (2nd R) and Jenson Button (R) and cyclist Mark Cavendish (L), during a visit to the McLaren Technology Centre in Woking, southern England November 17, 2011 . REUTERS/Pool/Oli Scarff

WOKING, England (Reuters) - McLaren boss Ron Dennis sang the praises of his Formula One driver line-up on Thursday and detected echoes of Ayrton Senna in Jenson Button's relationship with the team.

"In many ways there are similarities between Ayrton and Jenson," the 66-year-old group chief executive told reporters at a pre-season briefing at the McLaren factory in southern England.