Unser Sr. to take the lead and get a lap on Guerrero. Guerrero finally got going and unlapped himself on lap 191 and there was a caution on lap 192 for Andretti stopping on the track. On lap 196 the restart came out with six cars between Unser and Guerrero. Guerrero was unable to get by Unser and ended up finishing 2nd to one of the year-old March 86Cs to be pressed into race service. Near-fatal crash and recovery After his near-win in Indianapolis, subsequently, Guerrero scored four pole positions at the Miller American 200 in Honor of Rex Mays at the Milwaukee Mile, the Budweiser/G.I. Joe's 200 presented by Texaco at Portland International Raceway, Budweiser Grand Prix of Cleveland at Burke Lakefront Airport, and the Escort Radar Warning 200 at Mid-Ohio Sports Car Course. In the latter Guerrero scored his second (and unbeknownst at the time, last) IndyCar victory. Just days after his Mid-Ohio victory, Guerrero was testing at the Indianapolis Motor Speedway, when he crashed and was hit by a tire off of his car. Guerrero was in a coma for seventeen days and did not compete in any more races in 1987. Guerrero finished a career-best 4th in points with 106 points, despite missing the final three races of the season. Guerrero's recovery from his near-fatal accident was documented by IndyCar Medical Director, Dr. Steve Olvey, who said in his biography, Rapid Response: My Inside-Story as a Motor-Racing Life-Saver, that he saved Guerrero's life by lowering the pressure in his brain with injections of medicines that were brand-new to the medical field and were not widely practiced yet. Somehow, his treatment worked and Guerrero's recovery, which only took less than 3 months, led to him studying traumatic brain injuries as his primary focus of study. Later career In 1988 Guerrero returned with Vince Granatelli Racing and originally drove the No. 2 STP/Dianetics: The Evolution of a Science Lola T88/00-Cosworth DFX. At the season-opening Checker 200 at Phoenix International Raceway Guerrero qualified and finished in 2nd place. However, the remainder of the season was mostly a disappointment, such as the Indianapolis 500 where Guerrero qualified 12th and did not even make it out of second due to being collected by Scott Brayton. The team even attempted to use a year-old March 87C at select races to no avail. Guerrero's only top tens after Indianapolis were the Quaker State