Kyle Lavigne

INDYCAR names new managing director of engine development

Veteran engineer Darren Sansum will oversee engine development and competition within the Verizon IndyCar Series.

Rolex 24: Alonso ends up 13th in Prototype during Rolex 24 debut

Fernando Alonso and United Autosports suffered multiple problems at the Rolex 24 Hours of Daytona and ultimately finished 13th.

Rolex 24: Action Express hang on for victory, Ganassi gets 200th win

Action Express Racing, Ford Chip Ganassi Racing, and GRT Grasser Racing Team took victories at the Rolex 24 Hours of Daytona.

IMSA: Rolex 24 Hours of Daytona after 20 hours — less than 4 hours remain

Twenty hours are down, with less than four hours to go in the 56th Rolex 24 at Daytona.

IMSA: Rolex 24 Hours of Daytona after 17 hours — less than 7 hours remain

Seventeen hours are down, with seven to go in the 56th Rolex 24 at Daytona.

IMSA: Rolex 24 Hours of Daytona after 2 hours — 22 hours remain

An update on the early action from the Rolex 24 at Daytona.

IMSA: Pumpelly, Machavern win Continental Challenge opener for RS1

Spencer Pumpelly and Dillon Machavern won the opening race of the 2018 Continental Tire SportsCar Challenge season.

IMSA qualifying: Wayne Taylor Racing, Corvette, Spirit of Race take Rolex 24 poles

A thrilling Rolex 24 qualifying saw Wayne Taylor Racing, Corvette Racing, and Spirit of Race score poles in their respective classes.

IMSA: Rolex 24 Team Preview - GTD class

A preview of the GT Daytona field for the Rolex 24 at Daytona.

IMSA: Rolex 24 Team Preview - GTLM

A preview of the small but stacked GTLM field of the Rolex 24 at Daytona.

IMSA: Rolex 24 Team Preview - Prototype

A look at the Prototype class ahead of the 2018 Rolex 24 at Daytona.

Harding Racing keeps expectations modest ahead of 2018 IndyCar season

Harding Racing is keeping expectations in check while trying to build on their 2017 success.

Recap: First week of individual IndyCar team testing at Sebring concludes

A handful of Verizon IndyCar Series teams took to Sebring International Raceway this week for testing to kick off 2018.

New (but familiar) faces emerging in the IMSA paddock with Felipe Nasr, Tristan Vautier and Matt McMurry

Some veterans of Formula One and IndyCar made waves at the Roar Before the 24.

IMSA: Breaking down how the Roar Before the 24 played out

The first official IMSA event of the year presented a lot of action, a little bit of controversy, and a few surprises in offering a preview of the of the Rolex 24.

IndyCar, Formula 1 drivers use Roar to set baseline for Rolex 24 later this month

Teams and drivers from the Verizon IndyCar Series and FIA Formula 1 World Championship will hit the ground running at the Rolex 24 in less than 3 weeks at Daytona International Speedway.

IMSA: Sunday’s Roar Before the 24 final day results

The final day of the Roar Before 24 concluded with a pair of practice sessions and a qualifying session for pit stalls and garage location for the IMSA WeatherTech SportsCar Championship’s Rolex 24 in three weeks.

IMSA: Roar Before the 24 Saturday results

The Roar Before the 24 continued on Saturday with three practice sessions for the IMSA WeatherTech SportsCar Championship.

IMSA: Roman De Angelis, Robert Masson take wins in Prototype Challenge

The IMSA Prototype Challenge Presented by Mazda kicked off its 2018 season on Saturday, with Roman De Angelis and Robert Masson winning their respective classes.