Two P-plate drivers have had their licences suspended after being caught at 137kmh in the leadup to Christmas, police say.
In the first incident, a 17-year-old P-plater from Gungahlin was caught driving 137kmh in a 100kmh zone on Christmas Eve.
Police said they detected the speeding red Mazda 3 about 8.10pm while conducting speed enforcement on the Majura Parkway.
The 17-year-old was issued with an infringement notice for exceeding the speed limit by between 30kmh and 45kmh.
He was fined $700, given eight demerit points and lost his licence. The driver was fined a further $213 for not displaying P plates.
About half an hour later, a 19-year-old Crace man was caught driving a white Honda sedan at 137kmh in an 80kmh zone by police on Horse Park Drive, Throsby.
This P-plate driver had his license suspended for 90 days and was fined $1841 for exceeding the speed limit by more than 45kmh.

Earlier, police saw a silver Mercedes sedan allegedly displaying stolen Queensland registration plates on Gungahlin Drive in Kaleen about 8.10pm Saturday.
Officers pulled over the 32-year-old Coombs man, who was also allegedly driving on a suspended learner licence.
After running checks on the sedan, police found it was unregistered and uninsured. The driver also allegedly returned a positive roadside drug screening.
He was arrested and will face the ACT Magistrates Court at a later date for several offences, including drug driving, possession of stolen property, displaying incorrect registration plates, using an unregistered and uninsured vehicle, and being a suspended driver.
Police are reminding motorists that double demerits are in place until 11.59pm on January 1.