Speedwell "Monza" Bonnet
A factory-correct fiberglass racing bonnet for Austin-Healey Sprites and MG Midgets. 
  • Ours is the competition version of the Monza, with the oil cooler air ducts not present in the street version.
  • Also suitable for street use, where the extra airflow reduces the overheating experienced with the original street version.
  • Fits any Spridget.
  • Hand-layed from an original mold purchased from Speedwell Ltd.
  • Fully edged.
  • Weight: 37 pounds.
  • Standard or custom mounting and ducting solutions available.
  • Price: $1200, plus shipping and handling.
See one on our CIO's roadster at the 1999 Liberty Grand Prix.
(Reproduced from the 1963 Speedwell Ltd. Catalogue)

The Monza Competition bonnet offered by The Toy Shop

The Speedwell Monza fibreglass bonnet has been in production for some time and is certainly one of the most popular conversion bonnets on the market. Maximum speed is increased by 3-4 miles an hour without any other modifications. The effectiveness of this design was  convincingly demonstrated when in 1960 Graham Hill driving the Speedwell Streamliner was timed at 132 miles an hour over the flying kilometre. The only difference between that bonnet and the production item were the faired-in wheel arches. Besides reducing frontal area, the monza bonnet is very much lighter than the Mark I assembly or Mark II bonnet and wings. Another advantage is engine accessibility which is undoubtedly a big snag with the Mark I Sprite. This improvement is achieved by hinging the unit at the front. A competition version of the Monza is available incorporating two additional front air ducts for oil coolers.