Technology has come a long way. I have a 1976 Buick Riviera 455ci (7.5L) V8 that weighs 4250 lbs and only outputs 205hp.
My TSX has half as many cylinders and 1/3rd displacement, and yet it puts out 5 more horsepower!
... and I'm one to talk about how half-ton trucks are for work. I'm commuting in my 3/4 ton Dodge/Cummins since I sold the Jeep and Pontiac. This is temporary while I find my Prius. After that, I'll send the Beast back to the farm to go about normal work.