delta88The Delta 88 Royale is a front wheel drive saloon (sedan) car with a front mounted engine, sold by Oldsmobile. Its 6 cylinder, overhead valve naturally aspirated engine has 2 valvesThe Delta 88 remained the top trim level, but it was divided into the standard Delta 88 and the upscale Delta 88 Custom. The Custom was available only in two- or four-door hardtop