Three expensive vehicles were impounded for seven days after an apparent race on Highway 1 near Chilliwack Saturday in which motorists drove at high speeds and deliberately blocked traffic so they could accelerate.

RCMP said that just one of the three drivers had a valid B.C. Class 5 driver's licence. The other two had Chinese national driver's licences that are valid only while they attend school.

Police officers responded to a complaint at 4 p.m. of four vehicles that appeared to be racing eastbound on Highway 1 near Number 3 Road between Abbotsford and Chilliwack.

According to a witness, the motorists were travelling over 130 kilometres per hour and passing vehicles on the shoulder of the highway while following each other as they weaved in and out of traffic, said RCMP spokesman Sgt. Peter Thiessen.

"Their driving behaviour was somewhat erratic," he said.

Fraser Valley Traffic Services officers spotted the vehicles - a 2013 Audi S5, a 2013 Land Rover and a 2011 BMW 328i - as they passed through the Chilliwack area and as three of the four vehicles attempted to block traffic from passing.

Two of the vehicles were pulled over by police and a third returned to the area. Police are still seeking information on a fourth vehicle, which left the scene.

The drivers, all 19- to 20-year-old males living in Richmond, were charged with driving without reasonable consideration, which carries a $196 fine, and had their licences suspended for 15 days with the possibility of further suspension. The drivers were the registered owners.

Thiessen said the vehicles were impounded for seven days.