Starting in 2006, the series has been run exclusively with Swift 016.a chassis powered by Mazda-Cosworth MZR 2300 cm³ (2.3 L) DOHC inline-4 engines producing 300 bhp (224 kW). The cars are capable of speeds in excess of 175 mph (280 km/h).Champ Car Atlantic News The new formula has lowered the costs of running a full Atlantic season to around $500,000–$600,000. This reduction in costs, plus the addition of the aforementioned $2 million prize, had an immediate effect on increasing the number of competitors in the series (car count), which had dwindled over the previous few seasons. For example, the 2007 season featured 30 drivers.Champ Car Atlantic Drivers
