1988 Cadillac Voyage concept. This post inspired from the recent Doug Demuro review of the concept which still drives today

The car was a working prototype with a high-output 4.5-liter V8 engine producing 275 horsepower and an electronically controlled four-speed automatic transmission. It also featured an intelligent all-wheel-drive system that could automatically switch from rear-wheel drive to four-wheel drive when sensors detected wheel slippage.