Alonso enjoys success on home soil
Ferrari and Alonso managed the strategy to ensure the 31-year-old took the chequered flag for the 32nd time in his career, in a race featuring a staggering 82 pit stops as Pirelli's degrading rubber again seemingly played too much of a role in the outcome for all concerned.
Despite their front-row lock-out following yesterday's qualifying, Mercedes appeared to find reverse gear on their cars as Nico Rosberg finished sixth and Lewis Hamilton 12th and out of the points for the first time this year.
No wonder Rosberg and Hamilton had preached caution regarding their hopes for the race, because despite Mercedes' hopes of a cure for their lack of pace throughout a grand prix it never materialised.
Although leading for the opening 10 laps after claiming back-to-back pole positions for the first time in his career, the German was soon swallowed up after the first round of pit stops.
As for Hamilton, the Briton started to go backwards from lap one as he was initially outmanoeuvred by Vettel into turn one, and then by Alonso a few corners later.
Formula One these days has become all about tyre conservation, with Hamilton's frustration coming to the fore just before the halfway stage of the 66 laps.
Turning to the radio, Hamilton said: "And now I've been passed by a Williams!"
When Hamilton was told soon after to look after his left-rear tyre, he then replied: "I can't drive any slower."
That has become the way of it in the sport at present, with Pirelli too much of a controlling force, even though they have spiced up the show.
Rosberg managed to hold Force India's Paul Di Resta off for sixth, with the Scot again the best of the Brits for the second successive race as McLaren's Jenson Button came home eighth ahead of team-mate Sergio Perez.
Bizarrely, although Perez closed on Button over the closing laps, he was given a radio message to conserve his tyres which forced him to back off, which could be interpreted as a team order, something team principal Martin Whitmarsh claimed did not exist within McLaren in Bahrain three weeks ago following a fall-out between his drivers.
There were plenty of other incidents, initially sparked by Romain Grosjean in his Lotus whose right-rear suspension gave way after eight laps, forcing him to limp to the pits where he retired.
Caterham's Giedo van der Garde had only three wheels on his car when he returned to the garage a lap after his pit crew had failed to fit correctly his left-rear that came loose following his second stop.
Shortly after Sauber's Nico Hulkenberg and Jean-Eric Vergne in his Toro Rosso collided in the pits - with the former exiting his pit box from a stop and the latter entering his to make one - a Pirelli tyre again suffered another failure.
For the fifth occasion this season the tread shredded on a tyre, this time on Vergne's car, which will lead to another Pirelli investigation.