Ever wonder what's under the hood of the different Rolex 24 cars at Daytona? Let's compare

·4 min read

There are 61 cars entered in this weekend's Rolex 24 — the biggest field in nearly a decade — including seven in the Prototype class, 10 in LMP2, nine in the LMP3 class, 13 in GTD Pro and 22 in GTD.

You'll notice a name missing from that list: GT Le Mans. Yep, that class is now gone while the GT class has combined into two categories. That class is loaded this season and will take up over half of this weekend's field.

The Wayne Taylor No. 10 Acura will lead all 61 cars to green Saturday (1:40 p.m.) after winning last weekend's qualifying race in thrilling fashion, holding off a late charge by the No. 5 Cadillac DPi machine, driven by Richard Westbrook.

Through the Gears: How will the Next Gen racing look at Daytona? Dale Jr. weighs in

Traffic jam: Roar Before the Rolex 24 starts the clock on 2022 motorsports season

Last year's classes: How do the 5 types of car classes stack up at the Rolex 24 At Daytona? Let's compare them.

Here's a look under the hood:

The No. 10 Wayne Taylor DPi won Sunday's Rolex 24 qualifier.
The No. 10 Wayne Taylor DPi won Sunday's Rolex 24 qualifier.

Daytona Prototype international (DPi)

The fastest and most technologically advanced sports cars in North America, the Daytona Prototype International is specifically designed and engineered for the race track.

DPi cars use chassis built to international specifications powered by engines from mainstream automotive manufacturers Acura and Cadillac.

In addition, DPi bodywork includes styling cues that align with these engine manufacturers.

Top speed: 200 mph

Horsepower: >580

Wheelbase: Length varies; based on production design

Weight: 2,046 lbs

Height: Height varies; based on production design

Width: 74 inches

Cars: Acura ARX-05, Cadillac DPi-V.R

Engines: Acura 3.5L V6, Cadillac 5.5L V8

Fuel: E-20

Gearbox: 6-speed paddle shift

Tires: Michelin

Chassis: Carbon fiber monocoque

Suspension: Front and rear - independent coil springs, upper and lower A arms

Traction control: Permitted

The No. 22 Oreca LMP2 07 is followed closely through the bus stop.
The No. 22 Oreca LMP2 07 is followed closely through the bus stop.

Le Mans Prototype 2 (LMP2)

The Le Mans Prototype 2 is a closed cockpit car developed by four approved constructors, but all LMP2s in this year’s field will be ORECA chassis.

In addition to the IMSA WeatherTech SportsCar Championship, LMP2 cars are eligible to compete in other global series such as the FIA World Endurance Championship, which includes the prestigious 24 Hours of Le Mans.

Top speed: 190 mph

Horsepower: 580

Wheelbase: Length varies; based on production design

Weight: 2,068 lbs

Height: Height varies; based no production design

Width: 74 inches

Cars: ORECA LMP2 07

Engines: Gibson V8

Fuel: E-20

Gearbox: 6-speed paddle shift

Tires: Michelin

Chassis: Carbon fiber monocoque

Suspension: Front and rear - independent coil springs, upper and lower A arms

Traction control: Permitted

Le Mans Prototype 3 (LMP3)

The Le Mans Prototype 3 is an entry level closed cockpit car developed by four approved constructors.

In addition to the IMSA WeatherTech SportsCar Championship, LMP3 cars are also eligible to compete in the IMSA Prototype Challenge — one of IMSA’s driver development series — as well as other international series such as the European Le Mans Series (ELMS).

Top speed: 185 mph

Horsepower: 460

Wheelbase: 112 inches

Weight: 2,068 lbs

Height: 43 inches

Width: 74 inches

Cars: Ligier, Duqueine

Engine: Nissan V8

Fuel: E-10

Gearbox: 6-speed sequential

Tires: Michelin

Chassis: Carbon fiber monocoque

Suspension: Front and rear - independent coil springs, upper and lower A arms

Traction control: Permitted

Cars turn laps during Roar Before the 24 practice at Daytona International Speedway, Friday, Jan. 20, 2022.
Cars turn laps during Roar Before the 24 practice at Daytona International Speedway, Friday, Jan. 20, 2022.

GT Daytona PRO (GTD PRO) and GT Daytona (GTD)

The GT Daytona cars that will participate in both the GTD PRO and GTD classes use the same technical regulations.

The only difference between the classes is the eligibility of all-pro driver lineups for GTD PRO versus required Pro-Am driver lineups in GTD.

The cars are enhanced (not defined by) technology and utilize the global FIA-GT3 specification. The GTD class consists of cars from leading manufacturers such as Acura, Aston Martin, BMW, Chevrolet, Ferrari, Lamborghini, Lexus, McLaren, Mercedes-AMG and Porsche.

Top speed: 180 mph

Horsepower: >500

Wheelbase: Length varies; based on production design

Weight: 2,680 lbs

Height: Height varies; based on production design

Width: 79 inches

Cars: Acura NSX GT3, Aston Martin Vantage GT3, BMW M4 GT3, Corvette C8.R GTD, Ferrari 488 GT3, Lamborghini Huracan GT3, Lexus RC F GT3, Mercedes-AMG GT3, Porsche 911 GT3 R

Engines: Acura V6 Turbo, Aston Martin 4.0-liter V8 Turbo, BMW 3.0-liter straight six M TwinPower Turbo, Chevrolet 5.5-liter pushrod 2-valve, Ferrari V8 Turbo, Lamborghini 5.2-liter V10, Lexus 5.0-liter V8, Mercedes 6.2-liter V8, Porsche 4.0-liter flat six

Fuel: VP Racing Fuel E-10

Gearbox: 6-speed

Tires: Michelin

Chassis: Steel tubing and integral roll cage or production tube with cage, based on production model available to the public

Suspension: Front and rear - independent coil springs, upper and lower A arms

Traction control: Permitted

This article originally appeared on The Daytona Beach News-Journal: Rolex 24 at Daytona: Comparing the different car classes for 2022