A series of street races. As you progress and level up in the "Road Racing Series" more tracks will be unlocked. The final track "The Colossus" will be unlocked when you reach 10th tier.
Vehicles that can be unlocked after reaching the following tiers:
Tier 1 - Ambleside SprintTier 1 - Horizon Festival CircuitTier 2 - Derwent Lakeside SprintTier 3 - Ambleside Village CircuitTier 3 - Elmsdon on Sea SprintTier 3 - Horizon Festival SprintTier 4 - Greendale Club CircuitTier 4 - Lake District SprintTier 4 - Moorhead Wind Farm CircuitTier 5 - Edinburgh City SprintTier 5 - Holyrood Park CircuitTier 5 - Princes Street Gardens CircuitTier 6 - Broadway Village CircuitTier 6 - Lakehurst Copse CircuitTier 6 - Waterhead SprintTier 7 - Edinburgh Station CircuitTier 7 - Greendale Super SprintTier 7 - The Meadows SprintTier 8 - Astmoor Heritage CircuitTier 8 - Bamburgh Coast CircuitTier 8 - Cotswolds Super SprintTier 9 - Derwent Reservoir SprintTier 9 - Glen Rannoch Hillside SprintTier 9 - Lakehurst Forest SprintTier 10 - The Colossus