I've not run into this problem in commercial products, but I've not tested all of them by any stretch. (matt.garrish.ca)
What I mean by working out the actual calorie intake for you is that it is virtually impossible to know the exact amount of calories in any particular food without a laboratory test of it. (venusfactordietsystem.com)
But then what better way is there for us to gauge these cars, and for their makers to demonstrate their engineering prowess, than by seeing how they stack up against the toughest one - lap litmus test of them all? (evo.co.uk)