Spookily just working on the Riley 1.5 entry in a book I'm editing. Here's what it says:
RILEY 1.5 1957-1965
In 1957, first there was the Wolseley 1500 (described below) and then, from November, there was the Riley 1.5, both of them sharing the same body structure, basic body style, and running gear. As was the way of things at BMC, while the Wolseley was really an up-market Austin, the Riley was meant to have a more sporty character.
The development process had been tortured, but the parentage of this car was clear. Although the 1.5 (and the Wolseley 1500) had a stubby unit-construction four-door saloon body style, the platform was that of the Morris Minor 1000, as were modified versions of the front and rear suspensions, plus the rack-and-pinion steering gear.
The B-Series engine/transmission installation, however, was really de-tuned MG MGA, for the twin-SU engine produced 62bhp, and the gearbox featured a neat remote-control floor change. Trim and furnishing were rather bitty and multi-coloured, though separate front seats were standard.
Although the 1.5 did not handle with the same crispness of the Minor 1000, it was a brisk little machine, for which the top speed of 84mph was disappointing. Independent specialists soon proved that the 1.5 could be turned into an affective racing saloon car, though rallying success eluded it.
Although the 1.5 stayed in production for eight years, there was little evolution in that period. The Mk II of 1960 featured hidden bonnet and boot hinges, but few other changes, while the Mk III of 1961 had a slightly revised front-end style, but no other innovation. At no time did overdrive ever become available.
By the early 1960s the 1.5 (and the Wolseley 1500) were really forgotten cars, though down-market Austin Lancer and Morris Major versions had been introduced for domestic assembly in Australia. Many people respected the 1.5, but no-one really seemed to love it enough to preserve and improve later examples.
Body styles: saloon
Production: 39,568
Engine & transmission: 1489cc, 4cyl ohv, f/r
Power: 62bhp @ 4500rpm
Max speed (mph): 84
0-60mph (sec): 17.4
Suspension & brakes: tor ifs, leaf rear, drums f&r
Length (in)/weight (lb): 153/2060
Launch price: £864
They were sporting small saloons and raced and rallied. Most have rusted away over here. I've been to look at a few but they've been too far gone. Nice wood and leather interiors though.