A boost in output by 31 kW / 42 hp (42 bhp) for the four-cylinder turbocharged gasoline engine of the C 300 4 MATIC is available under the BRABUS PowerXtra B30 label. The extra horses are realized by a plug-and-play module with special maps for injection, ignition and boost pressure control, which is adapted to the engine electronics. The new output of 221 kW / 300 hp (296 bhp), up from 190 kW / 258 hp (255 bhp), and a peak torque of now 450 Nm (332 lb-ft) rather than 400 Nm (295 lb-ft) as before, cuts the sprint time from zero to 100 km/h (62 mph) to 5.8 seconds. The top speed remains electronically limited to 250 km/h (155 mph).