Jordan Taylor in the Rolex-winning #10 Konica Cadillac DPi V.R turned a lap of 1:49.888 at 122.5 mph, two-tenths faster than Joao Barbosa in the #5 Mustang Sampling Cadillac, which was two-tenths quicker than Michael Conway in the #312 Whelen Engineering Cadillac.
Neel Jani in the #13 Rebellion Racing Oreca-Gibson was quickest of the non-Cadillacs at 1:50.602 and 121.7 mph.
Corvettes were first and third in GT Le Mans, with Tom Milner in the #4 lapping at 1:57.206 at 114.8 mph, followed by Sebastien Bourdais in the first of the three Fords at 1:57.372 and 114.7 mph, and Antonio Garcia in the #3 Corvette at 1:57.433 and 114.6 mph.
Andrew Davis in the #57 Stevenson Audi R8 LMS GT3 was quickest in GT Daytona, with a time of 2:01.449 at 110.8 mph, ahead of Austin Cindric in the #15 3GT Lexus RCF GT3, and Christopher Mies in the 29 Montaplast Audi.
Colin Thompson in the #26 Prototype Challenge Oreca FLM09 led the class with a lap of 1:54.741 at117.3 mph.
Racing starts early on Friday with Continental Tire Challenge practice at 8 a.m. followed by qualifying at 8:30. Practice and qualifying for WeatherTech and races by Prototype Challenge and Porsche GT3 Cup fill the day until the two-hour Continental Tire Challenge Sebring 120 which starts at 3:40 p.m.
The IMSA WeatherTech Mobil 1 Twelve Hours of Sebring starts at 10:40 a.m. Saturday, March 18.
Tickets are available by calling (800) 626-RACE or visiting the Sebring Raceway website.
Most of the weekend’s action will be broadcast on IMSA.tv. The race will be divided between IMSA.tv, Fox Sports Go, and FoxSports1. The Continental Tire Sebring 120 will be rebroadcast on FoxSports1 Sunday starting at 10:30 a.m.