INDYCAR has set its off-season and in-season testing guidelines for manufacturers and teams to learn the new universal bodywork for 2018. The off-season testing window, which began with this week's test at Sebring, runs through March 29, 2018. The in-season window begins March 30 and ends Sept. 16. Four open test days have been designated with all Leaders Circle entrants required to take part unless approved by IndyCar. They will be held Feb. 9-10 at ISM Raceway (formerly Phoenix Raceway), March 20 at Barber Motorsports Park and March 27 at Indianapolis Motor Speedway. Each Verizon IndyCar Series entrant will have five team test days – three in the off-season window starting Jan. 8 and...
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