Sim racing · Streamed live on YouTube

Sports cars,
prototypes,
every lap live

Glentec Gaming races iRacing, Le Mans Ultimate, ACC, rFactor 2 and Automobilista 2 — GT3 to hybrid prototypes, broadcast from the cockpit.

01 — Sports Car

Sports Car categories
I participate in

Six sports car classes, each with its own machinery, regulations and race craft. Formula is covered separately.

GT3 race car
GT3

GT3

A global sports car category where Porsche, Ferrari, Mercedes, BMW and Aston Martin build race-ready versions of their road cars. Every car is BoP’d — officials adjust weight and power so no brand has an unfair advantage.

Format
Sprint & endurance
Regulation
Balance of Performance
Field
Pro & amateur
Sim
iRacing / LMU
GT4 race car
GT4

GT4

Closer to their street-legal counterparts than GT3, but no less fierce. Stripped of luxuries and fitted with roll cages, adjustable suspension and aero — agile machines that reward precision over raw power.

Base
Road-going
Format
Sprint
Kit
Cage, adj. susp., aero
Character
Agile
Porsche 992 Cup race car
992 Cup

Porsche 992 Cup

Brutal and no-nonsense. With no ABS to cushion mistakes, braking becomes a tightrope — enormous stopping power that has to be modulated with surgical precision. Controlled aggression on the edge of disaster.

Class
One-make
ABS
None
Discipline
Braking
Margin
Razor thin
IMSA race car
IMSA

IMSA

North America’s major sports car championship — prototypes and GT cars sharing the track at once. Short sprints through to the 24 Hours of Daytona and 12 Hours of Sebring, with close racing and multi-class strategy throughout.

Region
North America
Classes
Multi-class
Blue riband
Daytona 24
Strategy
Traffic & classes
GTP — Hybrid Prototype race car
GTP

GTP — Hybrid Prototype

The top class in IMSA: high-tech hybrid prototypes from Porsche, BMW, Acura, Cadillac and Lamborghini. Not based on any road car — purpose-built for speed and endurance, using hybrid power for boost and efficiency.

Tier
Top class
Power
Hybrid
Marques
Porsche, BMW, Acura
Built for
Endurance
Toyota GR86 Cup race car
GR86

Toyota GR86 Cup

A one-make series where everyone races an identical Toyota GR86. Identical cars mean the racing is extremely close and the result comes down to race craft, not budget or engineering.

Format
One-make
Car
Toyota GR86
Decided by
Driver skill
Racing
Door to door
02 — Formula

Formula categories
I participate in

Four rungs of the single-seater ladder, from a driver's first open-wheel car through to the final step before Formula One.

F4 race car
F4

F4

Formula 4 is the first major step on the single-seater ladder for young drivers. The cars are lightweight, open-wheel machines with modest power, designed to teach drivers racing basics like aerodynamics, wheel-to-wheel racing, and racecraft. F4 is often where teenage drivers start their journey toward Formula One.

Ladder
First step
Car
Lightweight open-wheel
Power
Modest
Teaches
Racecraft basics
Super Formula Lights race car
Super Formula Lights

Super Formula Lights

Super Formula Lights is Japan’s equivalent to Europe’s F3-level category. The cars are faster than F4 but less powerful than Super Formula. It's a key development series for drivers aiming to reach top Japanese categories or even F1. The racing is known for being technical and very competitive. My personal favourite open wheel series on iRacing.

Region
Japan
Level
F3 equivalent
Racing
Technical & close
Note
Personal favourite
Formula C (F3) race car
Formula C (F3)

Formula C (F3)

Formula 3 is a global junior category that builds on what drivers learn in F4. F3 cars are much quicker, have more downforce (grip from aerodynamics), and demand higher skill. It’s often the first major international series for rising stars and is directly linked to the Formula 1 support package. Performance-wise, it’s the middle rung of the F1 ladder.

Ladder
Middle rung
Grip
High downforce
Stage
First international
Runs with
F1 support bill
Formula B (F2) race car
Formula B (F2)

Formula B (F2)

Formula 2 is the final step before Formula One. The cars are extremely fast, with high power and strong downforce. They race on F1 weekends and use similar tracks, making it the ultimate proving ground for drivers trying to break into F1. Many current F1 drivers came directly from F2, as the series emphasizes driver talent over team spending.

Ladder
Final step to F1
Power
High
Runs on
F1 weekends
Decided by
Driver talent
04 — Platforms

The sims
I race on

iRacing is home for competitive weeks and special events. Le Mans Ultimate, rFactor 2 and Automobilista 2 fill out the endurance and historic calendar.

iRacing
iRacing
Home platform — weekly series, licences and special events.
Le Mans Ultimate
Le Mans Ultimate
Official WEC title — Hypercar, LMP2 and LMGT3.
rFactor 2
rFactor 2
Physics benchmark for endurance and historic running.
Automobilista 2
Automobilista 2
Varied grids, laser-scanned circuits, dynamic weather.
Glentec Gaming

Pull up a seat
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Live races, onboards and setup talk — every stream, every category. Follow along wherever you watch.

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