It's about four times as heavy as a Car.
In other words, 7.1 tons is 3.899 times the weight of a Car, and the weight of a Car is 0.2565 times that amount.(for 2009 Ford Taurus; automatic transmission; curb weight)
A 2009 Ford Taurus weighs 1.821 tons. The first mass-produced car, the Curved Dash Oldsmobile — introduced in 1901 — weighed just 0.4255 tons.
It's about nine-and-a-half times as heavy as a Cow.
In other words, the weight of a Cow is 0.11 times 7.1 tons.(for Holstein, a.k.a. Holstein Friesian, a.k.a. Friesian, Bos primigenius) (adult, heifer)
A mature Holstein cow (the well-known black-and-white, spotted breed of cow) typically weighs 0.75 tons. President William Howard Taft (1909 - 1913) kept a Holstein cow named Pauline Wayne on the White House grounds — a gift from a Wisconsin senator and the source of the First Family's milk.
It's about one-tenth as heavy as The Space Shuttle.
In other words, the weight of The Space Shuttle is 11 times 7.1 tons.(for Endeavour, a.k.a. OV-105, a.k.a. Orbiter Vehicle-105) (empty weight, excluding main engines)
When empty, the space shuttle Endeavour weighs 78 tons. The shuttle's spacious cargo bay carried the Chandra X-ray Observatory into orbit in 1999 — a payload that weighed 22 tons.
It's about twelve-and-a-half times as heavy as a Grizzly Bear.
In other words, the weight of a Grizzly Bear is 0.0806 times 7.1 tons.(a.k.a. brown bear, a.k.a. silver bear, Ursus arctos horribilis) (Adult, male, coastal area population average)
An adult, male grizzly bear from a coastal area (where food is plentiful) can weigh up to 0.574 tons. In spite of their tremendous size, grizzly bears can run at speeds of up to 55 kph (34 mph).
It's about twelve-and-a-half times as heavy as a Polar Bear.
In other words, the weight of a Polar Bear is 0.08 times 7.1 tons.(Ursus maritimus) (adult, male)
An adult, male polar bear weighs between 0.569 tons. Polar bears are so heavily insulated by their 9.9 cm (3.9 in) layer of blubber that they are often difficult to detect using infrared photography sensors.
It's about fourteen times as heavy as a Grand Piano.
It's about fifteen times as heavy as a Horse.