D1 Grand Prix - D1 National Series

D1 National Series

During the 2005 exhibition event at Silverstone, a domestic series was announced with a plan to run the UK round as part of the world series for the following year, though plans for a point scoring round at that location never materialised. The series took over where the Autoglym Drift Championship left off, which was formerly run by the OPT Drift Club, an offshoot of a tuning business called Option Motorsport. The club held a championship in 2002 called D1UK (the previous moniker), though not related to the magazine, for the 2004 season, the business was forced to drop the Option and D1 name for legal reasons.

The difference between the Autoglym series, which was sponsored by the car care product manufacturer, and the D1GB is that the former had a separate championship for beginners called Clubmans which was run in a tansou (solo run) format only and did not require the common safety amenities (e.g. rollcages), and the latter is a main championship for experienced drivers which consists of the usual tsuiso (twin run) rounds. The other difference is, D1 regulation is more stringent on car modifications. The club was since absorbed into the D1 franchise as a national series.

The GB series, was followed by a Malaysia series (D1MY), though the series and drivers' search began earlier than its UK counterpart due to the difference in climate with its first round in March, compared with the UK series in May. The MY series tends to have the privilege of having Tsuchiya to judge the rounds, whereas the UK series only had Dorikin and Manabu Suzuki as judges in Round 2, on the weekend of the D1GP exhibition event. The New Zealand series are currently run as a drivers' search rounds, which awards a D1 License to the winners and allow the top four to compete in the world exhibition event in the US in December.

At the end of the season, the series went through a major technical hitch as the D1 organisation refused to foot the fee to import the top 5 cars to Irwindale as promised, therefore the organizers of the D1GB dissolved its association with the D1 organisation and formed the European Drift Championship (EDC) which uses the same rule as the series itself. As a compromise, the D1 organisation instead gave the top three drivers a chance to compete in US based cars for both the point scoring and World All-Star round. The D1 franchise would itself move to the US after three seasons of being opening points scoring round.