Clearly the slowest team in F1 since its 2010 debut, the Spanish backmarkers' Pedro de la Rosa actually qualified clearly ahead of both Marussia drivers in Canada.
"In Monaco we had a good qualifying and here it was even better," he said.
It was a similar story in the race, although de la Rosa was gutted to have to retire with overheating brakes.
"I am left with a bad taste," he admitted to Antena 3 television, "because this weekend has been our strongest of the season."
Marussia's Glock commented on the poor pace of his car in Canada: "We did not have enough time to focus on an aero package for medium downforce," he told Germany's Auto Motor und Sport.
Former Toro Rosso driver Jaime Alguersuari, however, thinks Montreal might have signalled a turning point for HRT.
Asked if he thinks the team will consistently perform better from now on, the Spaniard told AS newspaper: "Why not?
"The work they are doing is admirable. They are growing every weekend and now more competitive than Marussia, so I would like to send them a message of support."