The Blues have kept up New Zealand's 100 percent winning record in Super Rugby Trans-Tasman, thrashing the Rebels 50-3 at Melbourne's AAMI Park.
The Auckland side, who finished third in Super Rugby Aotearoa, ran in six tries - five of which came in the second half alone - turning on the style to leave the Rebels with no answer, in another example of the gulf between the New Zealand and Australian teams.
Despite dominating most of the early minutes, the Blues couldn't manage to cross over for a try, and instead had to settle for points from the boot of first-five Otere Black, who scored three penalties, as well as a long range effort from fullback Zarn Sullivan.
Rebels' first-five and captain Matt To'omua landed a kick of his own, scoring his side's only points of the night.
The Blues looked to have grabbed the first try of the evening, as Bryce Heem pounced on a loose pass from Matt To'omua to run away and score, only for the TMO to rule that the ball came off the shoulder of Rieko Ioane as he tackled the Rebels' first-five.
The visitors' cause wasn't aided by a yellow card to flanker Adrian Choat, sent to the sin bin on the verge of halftime after infringing on the Blues' line.
Despite being down a man, the Blues eventually grabbed the first try of the night with the final play of the first half.
With the siren having already sounded, the Blues showed how dangerous they can be when moving the ball, as captain Tom Robinson scored out on the left wing, sending the visitors into halftime with a 17-3 lead.
But while it took the Blues 40 minutes to score a first-half try, they'd need less than 10 in the second, as Hoskins Sotutu barged his way over from close range.
That opened the floodgates, as the Blues proceeded to pile on the points in the second half.
Sotutu soon had a second, after persistent dominance at scrum time allowed the Blues' No.8 to pick and go with the Rebels under threat of a yellow card for multiple infringements, and earn his side a bonus point.
Off the bench, Akira Ioane scored the Blues' fourth try, throwing a dummy before bursting over from inside the Rebels' half, as the visitors turned on the style in the final 20 minutes.
AJ Lam was on hand for the Blues' fifth, after a team breakaway allowed Harry Plummer to try a crossfield kick out to the left flank, which the winger gratefully accepted to score, taking the visitors' total past 40 points.
Not long after, the Blues passed 50 when Akira Ioane had his second after replacement halfback Sam Nock stole a wayward lineout, as the Rebels couldn't keep up with the Aucklanders.
The 47-point margin sends the Blues to the top of the Super Rugby Trans-Tasman standings, ahead of the Highlanders (+21), Hurricanes (+16) and Crusaders (+2) who all notched opening round victories.
The win is the first time since 2010 that the Blues have won by more than 40 points, coming against the Lions.
Blues: Robinson, Sotutu (2), A. Ioane (2), Lam tries. Black (2), Plummer conversions. Black (3), Sullivan penalties.
Rebels: To'omua penalty
