The Formula Three Euroseries is a European-based junior single seater formula for Formula Three chassis that was launched (in its current form) in 2003. The Formula Three category, including this championship, is part of the established career ladder up which European drivers progress to the Formula One world championship, the highest form of single seater racing defined by the Fédération Internationale de l'Automobile (FIA), motorsport's world governing body. Lewis Hamilton, 2008 Formula One champion with the McLaren team , won the Euroseries drivers' title in 2005. The 2004 and 2006 champions – Jamie Green and Paul di Resta – drive in the Deutsche Tourenwagen Masters, while other notable drivers – including Adrian Sutil and Nico Rosberg – compete alongside Hamilton in Formula One.

Technical and sporting regulations
The FFSA and DMSB created the new championship around the FIA-sanctioned[9] F3 formula of multiple chassis builders and production-based 4-cylinder 2-litre engines with control supplies of tyres and fuel. As in most F3 championships, the Italian company Dallara is the dominant chassis supplier. It was originally planned to restrict entry to two-car teams, but this requirement was later relaxed. In most Formula Three championships, multiple and single-car entries are not uncommon.

Some Formula Three championships, such as the British F3 Championship, use a two-tier system to provide an opportunity for low-budget teams and drivers to compete with out-dated chassis specifications. In an effort to minimise costs, Formula Three chassis regulations permit major updates only periodically, with annual updates restricted to minor improvements.

When the Euroseries was launched, restrictions were effectively placed on the teams' choice of chassis specification by opting not to create a lower-tier championship class, and all entrants used the two most recent available specifications.

There is a rookie classification system with a Rookie of the Year title for drivers who have not previously competed in this championship. The Drivers' Trophy was introduced in 2006 to provide a classification system and class title for drivers using chassis of between two and four years old. Eligibility for this "B class" was restricted to drivers who were not more than 22 years old at the start of the season. This class is no longer in use in 2007.

In 2006, testing was restricted to a maximum of 10 days per driver/car, with no testing at race venues, Consequently, teams and drivers have to make the most of the test sessions during race weekends, which had already been reduced from 90 to 60 minutes in 2005.

Tyre usage is restricted to three sets per car for the entire race weekend. There is no limit on the use of wet-weather tyres, but only when they are deemed necessary by race officials. As is the case with most racing disciplines outside Formula One, tyre warming devices are not permitted.

An unauthorised engine change during the course of a race weekend invokes a ten-place penalty on the starting grid.
 

Event schedule
Each race weekend begins on Friday, with one 60-minute practice session and a qualifying session that decides the starting grid for the first race. There are two races; one of approximately 100-110 km on Saturday and one of approximately 70–80 km on Sunday. The starting times of each session/race vary slightly according to the event schedule at each venue.

With just one qualifying session, the grid for the second race is determined by the results of Race 1. The top eight positions are reversed, giving pole position to the 8th-placed finisher. The single qualifying session and results-based reverse grid system were introduced for the 2006 season: prior to that, the second race had its own qualifying session (with a bonus point for pole position). Drivers who fail to finish the first race occupy the remaining grid positions for Race 2 in the order in which they retired.

Scoring system
In the first race of the weekend, points are awarded to the top eight finishers, with 10 points for a win. One bonus point is awarded for the fastest qualifying time. In addition to the change to a single qualifying session, the points system for the shorter second race was revised in 2006: rather than award full points, it now awards points to the top six finishers, with only six points for a win.

F3 Euroseries points system (2006 onwards)
                 1st   2nd    3rd     4th     5th     6th   7th    8th
Race 1      10     8         6        5       4       3      2       1
Race 2        6     5         4        3       2       1 

Specifications

Chassis: Dallara F308 Stepped floor, crash boxes at the front and the rear Two roll-over structures. No change of chassis during an event.
Engine: Volkswagen and Mercedes Benz.
Engine Displacement: 2.0 L (2000cc) DOHC Inline-4.
Gearbox: 6 Speed manual paddle shift gearbox (must have reverse).
Weight: 1213 lbs (550 kg) (car including driver in full race gear and including all fluids apart from fuel).
Power output: 200 hp @ between 5000 and 7400 rpm.
Fuel: Aral Ultimate 100 RON, no refuelling is allowed during qualifying and race. After qualifying and race, 1 kg of fuel still has to be in the fuel system.
Fuel tank: FIA/FT3 homologated rubber safety tank.
Fuel Delivery: Fuel injection.
Aspiration: Naturally aspirated.
Electronics / ECU: Bosch.
Length: 4188 mm.
Height: 950 mm.
Width: 1850 mm (72.8") maximum.
Wheelbase: 2000 mm (78.75") minimum.
Track: 1200 mm (47") minimum.
Steering: 2-wheel steering with rack and pinion, power-steering.
Drivetrain: 2WD only.
Brakes: AP Racing.
Tyres: Exclusively Kumho ECSTA, limited to 60 sets of tyres per season per team. Three sets of tyres per weekend per team. Two sets of wet-weather tyres per race weekend, but their use is allowed in the case of a ‘Wet Race’ only. Tyres to be filled with environmental air or nitrogen; chemical or mechanical treatment is prohibited. Tyre dimensions: 180/550 R 13 front, 240/570 R 13 rear. Tyre heaters are not allowed.
Springs: free
Wheel rims: ATS maximum width 11.5“, maximum Ø 13“.
Probitings: Active suspension, Telemetry, and Traction Control