Compared to the Volvo Amazon, the 140 was a radical departure with minimal exterior and interior carryover, notably a stylised version of the front split grille.

Mechanically, the car used many of the same drivetrain components as the Amazon, but also showcased many improvements, including disc brakes on all four wheels.

It was also in 1969 that Volvo introduced the 164, which shared much of the 140 series structure and styling aft of the windshield while incorporating a six-cylinder engine, the B30 which was simply a B20 with two more cylinders and a few strengthened and enlarged components.

The Grand Luxe received a four-speed manual with overdrive as standard fitment, with an automatic optional.

[9] The styling changes continued in 1972 with the introduction of flush mounted door handles and a slightly revised dashboard with fake woodgrain trim, newly designed switches and a small central panel with a clock.

In 1973 the 140 series received a major facelift, with a new plastic grille, new larger indicators and a completely revised tail end.

Also, several safety changes were introduced including a fuel tank that was located close to the axle to protect it in the case of a rear-end collision, and larger bumpers that protruded more from the body.

US-market cars received the emissions-scrubbed B20F engine producing 109 hp (81 kW; 111 PS) at 6000 rpm.