England launched their bid for Six Nations glory with an emphatic and chastening 48-7 mauling of a sorry Wales at Allianz Stadium, Twickenham.
After , England were tasked with underscoring their status as chief rivals to the reigning champions - a challenge they rose to in ruthless fashion.
Arundell celebrated his first Test start since the 2023 World Cup by running in three first-half tries and there were also touch downs for Ben Earl, Toe Roebuck and Tommy Freeman, as well as a penalty try.
Wales were architects of their own downfall, buckling time and again under England's brutal dominance that saw the vistors reduced to 13 men in the first period after Nicky Smith and Dewi Lake were sent to the sin bin.
Wales may have arrived at Twickenham with expectations at an unprecedented low, but this drubbing offered another sobering reality check for Steve Tandy's squad, with the magnitude of the task of reviving Welsh rugby laid bare.
For Steve Borthwick and England, a comprehensive bonus‑point win - their 12th successive Test victory - offered the latest measure of their continued progress ahead of next week's Calcutta Cup trip to a wounded Scotland.
England ticked along at a point a minute from the outset. George Ford followed his early penalty with a miss‑pass that released Arundell in the corner for his first, establishing a 10-0 lead inside eight minutes.
Prop Smith paid the price for persistent Welsh infringements when he was sent to the bin on 17 minutes, and his captain Lake followed him 30 seconds later for cynically bringing down a maul, leaving the visitors down to 13.
It took England seconds to exploit the numerical advantage, Ford and Arundell combining again as the winger gathered the fly‑half's cross‑field kick to touch down unopposed for his second.
Wales ultimately conceded 12 points with Smith and Lake off the field, Earl marauding down the touchline and over in the corner for England's third midway through the first half.
Even when restored to their full complement, there was no respite for Wales. Fraser Dingwall pounced on a handling error in the Welsh backline, shifting the ball immediately to Arundell, who streaked clear of Aaron Wainwright to complete his hat‑trick.
England picked up where they left off early in the second half, with Tom Roebuck carving through Wales to add a fifth try for the hosts.
Twickenham roared to salute England captain Maro Itoje as he came off the bench for his first appearance since the passing of his mother.
But he was on the field only seconds before being sent to the bin for repeated infringements caused by mounting Welsh pressure, which finally yielded a score when Josh Adams gathered a cross‑field kick to touch down and spare the visitors' blushes.
Henry Pollock saw a try ruled out for a foot in touch, only for England to be awarded a penalty after Taine Plumtree's tackle on the forward was deemed high.
After seeing a score chalked off for a Luke Cowan‑Dickie neck roll at the breakdown, Tommy Freeman had the final word when he went over in the corner to add a final coat of gloss to an England victory that was sealed with ease.
Player of the match - England fly-half George Ford - told ITV: "We're obviously delighted with the result, and by and large I thought the performance was good.
"There's a tad bit of frustration in that as well. We wanted a good start, a decent performance, and we got that.
"The start of a Test match is always massive. First 10, 15, 20 minutes tactically to get a foothold in the game and put your stamp on it.
"We're trying to put bits of our game together, we want a really good defence, kicking game, set-piece, all to give us attacking opportunities. The more we create, the more we'll take.
"We probably left a bit out there today. It's always tough at Murrayfield, but we'll look forward to it. We always love going up there. We'll give it our best shot."
England head coach Steve Borthwick: "Defensively, we were excellent. We know Wales have got so many dangerous players and pace out wide, and we shut them down really well.
"Our kicking game was good and the set-piece did a good job, but there's plenty of room for improvement.
"What is really pleasing is we created loads of opportunities and we can get better at converting those.
"Especially in that second half, we didn't convert the opportunities in the manner I would like us to. There is plenty for us to go and work on."
Wales head coach Steve Tandy: "We're really frustrated. Through the autumn and working with the group, I've loved it. But we're more disappointed with ourselves today.
"Today, a lot of what happened was self-inflicted. We felt we were in a good place, but to lose when having four yellow cards and being very inaccurate with the ball, you are always going to fall behind on the scoreboard.
"It's part of the game. And part of our journey of where we need to go. We are where we are for a reason.
"Ultimately, we're really disappointed with our performance tonight. England are in a really good spot, bit we're bitterly disappointed."
England travel to Murrayfield to face Scotland for the Calcutta Cup on February 14 at 4.40pm, while Wales host defending champions France in Cardiff on February 15 at 3.10pm.
