History of the MG Midget & Austin Healey Sprite

Both models evolved from the original ‘Frogeye’ Austin Healey Sprite of
1958-61, a cute but slightly impractical budget sports car, using components
from the Austin A35 and Morris Minor, and built by MG at Abingdon. There was no
boot lid, and the one-piece front end was damage-prone. A more conventional
body design, with fixed front wings and an opening bootlid, was launched in
1961.
Because the MG Midget version first appeared in parallel with the Austin Healey
Sprite MkII in 1961, the Midget remained ‘one Mk behind’ as they evolved, until
the last Sprite, the MkV, which briefly became a plain Austin Sprite before
production stopped in 1971. The Midget continued alone until 1979.
Jointly nicknamed the ‘Spridget’ these models were extremely popular - the MkI
Sprite reached 48,999 units, the MkII-V Sprites totalled 79,338 and the Mk I-IV
Midgets achieved 224,395 units. A grand total of 352,732, or nearly as many as
the MGB tourer. That’s a lot of sports cars.
Although overshadowed by the ‘big Healey’ and the Mini Cooper S in BMC’s
competition department, the Sprite and Midget have had their glory days, with
class wins in events such as the 1961 RAC Rally, the 1963 Monte Carlo Rally and
the 1965 Sebring race. They were widely used by club competitors around the
world, and were especially effective in autotesting, being very compact and
agile.
Several different engines were used during the lifetime of the Sprite and
Midget. Starting with a twin-carb 43bhp version of the 948cc A35/Minor engine,
and moving through 56 bhp and 59 bhp versions of the 1098cc unit to the 1275cc
, 65 bhp engine. In 1974, a combination of economics and USA emissions
legislation led to the 66 bhp Triumph 1500 engine from the Spitfire being
adopted. This was ironic since the Sprite/Midget and Spitfire had always been
keen rivals.
From 1972 to 1974, the rear wheelarch of the Midget was changed to a circular
profile to match that at the front. However, the need for extra rear panel
stiffness to support the 1974 Federal-style ‘5 mph bumpers’ necessitated a
reversion to the ‘flat-top’ wheelarch.

The Federal bumpers were not really a ‘safety’ feature, but an attempt by
American legislators to counter the US culture of ‘parking by ear’. It was
intended to ensure that items such as lamps and radiators would not be damaged
in low speed impacts, and it was hoped that it would reduce insurance repair
costs. However, many US insurers found that costs actually went up because
accidents above 5 mph necessitated the replacement of inherently more expensive
bumper systems.
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