In the world of Grand Tourer cars, few comparisons generate as much discussion as the 1969 Maserati Indy 4.9 V8 versus the 1966 Lamborghini 400 GT 2+2. Both hail from Muscle era and represent the pinnacle of their respective manufacturers' ambitions. On paper, the two are remarkably close in power output, with the 1969 Maserati Indy 4.9 V8 producing 320 hp and the 1966 Lamborghini 400 GT 2+2 delivering 320 hp. Under the hood, the contrast is notable: the Maserati Indy uses a V8 DOHC displacing 4,930 cc, while the Lamborghini 400 GT relies on a V12 DOHC with 3,929 cc. In the sprint to 60 mph, the 1966 Lamborghini 400 GT 2+2 edges ahead at 6.5 seconds versus 6.5 seconds. The Lamborghini 400 GT carries a weight advantage, tipping the scales 750 lbs lighter. Rarity plays a significant role here — with only 247 units built, the 1966 Lamborghini 400 GT 2+2 is considerably scarcer than the Maserati Indy's 1,136 examples. On the collector market, the 1966 Lamborghini 400 GT 2+2 commands a significant premium over the 1969 Maserati Indy 4.9 V8, reflecting differences in prestige and rarity. From a collectibility standpoint, the 1966 Lamborghini 400 GT 2+2 rates higher among enthusiasts and auction houses.