Two-time Formula 1 world champion Mika Hakkinen has been all smiles since turning his first laps at Mazda Raceway Laguna Seca in Emerson Fittipaldi's 1974 title-winning McLaren M23B.The Finn, a guest of McLaren at the Rolex Monterey Motorsports Reunion, is spending the weekend turning demonstration laps in the Cosworth DFV-powered...