The 2015 IndyCar season will forever be overshadowed by the loss of Justin Wilson, in a tragic accident that rocked the series and re-opened a long-running debate on driver safety.
After Pocono, though, came Sonoma - a championship finale that yielded an unlikely champion - and, as AUTOSPORT's IndyCar correspondent Mark Glendenning explains, a surprise number one in his yearly driver ratings.
1 GRAHAM RAHAL
Team Rahal Letterman Lanigan Racing
Starts 16
Wins 2
Position 4th
The Indy 500 poleman who didn't live to raceday 6pm, May 11, 1996: Scott Brayton takes pole for the Indianapolis 500. 12:17pm, May 17, 1996: Scott Brayton dies in a practice crash. MARK GLENDENNING shares his story IndyCar
Fast Failures: American heartbreak at the Indianapolis 500 A real American hero was lost from the history books within sight of the finish of the 1967 Indianapolis 500. MARK GLENDENNING revisits the infamous STP turbine Indycar IndyCar
F1 and Haas are wrong to ignore America Alexander Rossi ended an eight-year Formula 1 exile for American drivers last month, but it seems he has been overlooked for a seat by the new Haas team. MARK GLENDENNING looks at why US drivers should be taken more seriously F1
IndyCar's secret manufacturer war Chevrolet subjugated Honda in the first year of IndyCar's aero-kit contest. The season might be over, but the battle has moved off-track and into a political row, as MARK GLENDENNING explains IndyCar
How the first F1 Mercedes laid the path of greatness When one of the giants of pre-war grand prix racing returned to the track in the 1950s, it did so with game-changing thoroughness. STUART CODLING examines the Mercedes W196 F1
The youngster set to end a 20-year wait for Suzuki Three podiums from the last four races have propelled Joan Mir into the fight for the most unlikely of MotoGP titles. However, there are other factors that further back up his chances of serving up Suzuki's first premier-class crown since 2000 MotoGP
Why running Le Mans without the fanfare was crucial This year's Le Mans 24 Hours was always going to standout in the history books as the one without the fans and the festival atmosphere, but running it in the first place was vital for both the present and the future WEC
How the "small things" cost another overdue win at Le Mans While Toyota has truly broken its Le Mans curse by sealing a hat-trick of wins, the bad luck and frustration is squarely stuck with the #7 crew who once again must swallow defeat WEC
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