Four cars and 12 drivers took part in the NTT IndyCar Series’ latest hybrid powertrain test across three days at Homestead-Miami Speedway’s roval, and like the last test at the same track, the news coming out of southern Florida was extremely positive.

With the familiar Chevrolet testing teams of Arrow McLaren and Team Penske joined by Honda’s Andretti Global and Chip Ganassi Racing, the foursome deployed different drivers in each car each day, and all totaled, another 1,202 laps—largely trouble-free—were completed and added to the 1,446 laps produced during the three-day January 29-31 test at Homestead-Miami.

Testing new software for the motor generator unit and the supercapacitor energy storage system created in a partnership between Chevy and Honda was a significant focus during the newest test.

Combined, 5,852 miles of hybrid testing has been logged in recent weeks and, barring a few minor glitches, the widespread running continues to be hailed as a major success.