Ray Bell ;
" liters " American language computer - Yes, thanks for the detail.
so that means 35 Mpg was was actually this = in Imperial 29 Mpg - more like it !!
A40 - summersaults " 928 " yeah - nah = yeahh right.
Must look at the details an A70 was that Hereford or Hampshire - must go check - and yes they do look a bit Chubby for Summersaults.
4.546 litres - just realised that is good as a pint is 568 ml - 8 pints to a Gallon, Imperial Gallon 568 x 8 = 4544 allowing a little bit for fractions and evaporation ..
Meanwhile somewhere in Australia, back in 1957 this was happening !!
more details later, perhaps -
note - some on the photo - and Mr Philips was well known in Motorsport circles .. in Australia.