Valiant as a brand in Australia became established in 1962, but it all started with the viability of the market being tested in 1960 with the importation for evaluation of a single American QX1 (Q Series); a revolutionary vehicle by the standards of the time.
The Valiant QX1 was built using the advanced technology of unit-body design which gave the Valiant QX1 a very tight feel, with good rigidity and soundproofing. The Torsion-Aire suspension was also advanced, with lengthwise unequal-length control arms and torsion bars up front and the "de rigeur" leaf springs in back.
The Valiant QX1 had a smaller wheelbase (106.5 inches) than other Chryslers of the time, but sported a relatively long body at 184 inches. Designing the vehicle with such a large overhang was good for styling - it could have a long bonnet and short rear deck appearance without losing interior or luggage space while retaining the appearance of a larger vehicle.
The Valiant QX1 was equipped with Chrysler's new 170 cubic inch G-Engine, later to become commonly known as the slant six. The 170 cubic inch slant six was competitive and economical with its competitors of the time. The key to its success was indeed the 30 degree slant of the motor.
This meant that the Valiant QX1 interior was spacious with ample leg room, comfortable and nicely styled, and not as spartan as many other vehicles of the time. In an era where ergonomics was not widely practiced the gauges and controls were well designed and easy to learn and operate.
If the Valiant QX1 was to become a permanent model for the Australian roads it would have to be converted to right-hand drive. Converting vehicles involves moving the steering box; this was a major problem on the Valiant QX1 because the slant of the engine prohibited a simple steering box move. Otherwise, the Valiant seemed like a natural for Australia being the right size for local tastes and fuel prices and the new slant six engine easily beat Ford and GM six-cylinder engines.
It seems that the evaluation Valiant QX1 ended its Australian sojourn involved in a sudden deceleration event with a tree?