By Tim Pitt After nine years, the Alfa Romeo Giulia Quadrifoglio should probably be shuffling off arthritically into the sunset. Instead, this old stager has come out fighting, with a second facelift designed to keep it competitive with the BMW M3 and Mercedes-AMG C63. A case of too little, too late? The Guilia has always been beautiful, so thankfully the updates for 2024 are mostly beneath its skin. The only noticeable differences are the fussier new headlights, each inset with three LED swooshes that evoke the classic Alfa Romeo SZ. Or so it says here. Power from the 2.9-litre twin-turbo V6 …