APEX Motor Club's “APEX Challenge Race Series” featuring Radical Spec Classes is a members-only race series that allows their members to race wheel-to-wheel at their premier country club.

The race season is comprised of eight races, where competitors earn points towards a series championship. Now into their third season, each race day is a family affair, complete with music, full hospitality offering and of course, wrapped up with custom trophies and a champagne podium.

There are multiple classes for members to compete in, offering Le Mans-style racing at an approachable level. The Radical Platinum, Silver, and Gold spec classes of the APEX Challenge Series allow novices to achieve better results and potential podiums.

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Race Calendar

All Radical Championships

Radical Cup UK

The Hagerty Radical Cup UK Championship was born out of our longstanding UK series to offer a more diverse racing weekend than ever before. Featuring Radical’s best-selling SR3 model...

Radical Cup North America

The Blue Marble Radical Cup North America is the continent’s premier Radical championship, and offers multi-class Le Mans style racing for a fraction of the price at iconic circuits...

Radical Cup Australia

The Radical Cup Australia has combined both East and West Radical communities to create Radical’s premier Australian championship.

Radical Cup Canada East

The Radical Canada East Cup builds on the successful history of one make championships in Canada and Radical racing around the world.

Radical Cup Canada West

One of the newest additions to the Radical racing network, the Radical Canada West Cup provides thrilling multi-model events for Radical racers in B.C. and the surrounding provinces.

Radical Cup Gulf

The first season of the Gulf Radical Cup kicked off in January 2006, since when it has become the longest running race series in the region. It has attracted more than 100 amateur racing drivers...

Radical Cup Scandinavia

The Cup Scandinavia consists of six race weekends across some of Europe's most northern circuits. Radical Cup Scandinavia is home to the largest sports car series in Scandinavia.

Radical Cup Caribbean

The Radical Caribbean Cup is the region’s premier one-make racing category in which all competitors race in identical 1340cc SR3s. Established at Bushy Park...

Radical Cup Korea

Following seven years of success in the UK with the fantastic SR1 catering for drivers of all ages, the Radical Asia Cup was born utilising the same grassroots concept...

Radical Cup Romania

The first season of Radical’s highly anticipated entry-level championship in Romania offers the best way for motorsports fans to start on their own racing path, and for racers from other series to enter the world of factory supported sportscar racing at a very attractive budget.

Radical Cup Philippines

The Radical Cup Philippines, also commonly known as the 'Philippines' fastest race series', has been introduced to create Radical’s premier entry-level Asian championship.

Radical Cup France

The Radical Cup France has returned to create another premier Radical racing championship in Europe.

Radical Cup Kuwait

The Radical Cup Kuwait is the latest addition to Radical Motorsport's global race offering. It consists of three race weekends at Kuwait Motor Town.

Radical Cup Challenge Arizona