The team Lewis Hamilton disparagingly described earlier this season as a "fizzy drinks manufacturer" have again sparkled to leave their rivals feeling flat.
For only the ninth time in F1 history a team completed the double double in winning back-to-back drivers' and constructors' crowns.
Following his title success in Japan last Sunday, Sebastian Vettel made it 10 wins for the year by taking the chequered flag in Korea, whilst team-mate Mark Webber was third.
Only once previously has a team gone beyond Red Bull's feat with Ferrari and Michael Schumacher managing five in a row from 2000 to 2004.
That underlines the task facing Red Bull and Vettel next year if they are to make it a 'three-peat'.
Regardless, Horner has loved beating Ferrari, McLaren and Mercedes these past couple of years, but a third time he appreciates will be difficult.
"It never gets easier, that's for sure," said Horner.
"It would be foolish to underestimate the likes of Ferrari, who are a phenomenal team with tremendous pedigree, or the likes of McLaren and Mercedes Benz.
"We are not foolish or arrogant enough to think that this kind of performance is normal. It's abnormal and takes a superhuman effort to try and achieve.
"We know our competitors are going to be pushing hard over the winter because to do what we've done once they could probably tolerate, but to do it twice probably upsets a little."
It is a mark of Red Bull's determination to go for three in a row that technical genius Adrian Newey was not even in Korea to join in the celebrations.
Instead, Horner has confirmed Newey was back at the factory hard at work on designing the team's 2012 car, with the final three grands prix to serve as test sessions for that.
"Focus has started moving towards next year, with less than four months to design and build a completely new car," added Horner.
"It's why Adrian elected not to attend this race, but is busy back in the UK focused on our RB8.
"The remaining races are the only track time we've got, other than a young driver test between now and when the new car is effectively born.
"So we'll look to learn everything we can out of the track time we have available, which means pushing right up to the chequered flag in the final race in Brazil."
There is one final goal for Horner and his team, even though there appears nothing left to play for, other than race wins in India, Abu Dhabi and Brazil.
Horner said: "The priority now is to get Mark into second in the championship.
"Effectively it's like three FA Cup finals, and I think they will be really exciting races.
"We can see both McLaren and Ferrari have been competitive of late, so it will be tight in all three, with some exciting racing."