Sweet ride Shag,I had a Beetle years and years ago,everyone could tell when I was comming down the road with the unmistakable sound of the air-cooled engine. Here is a bit of info on oil consumption I got off the owners site.
The Oil type that has been used which should be a 5W-30 and not a full synthetic. (Be aware that the Rotary engine is designed to use oil and Mazda claim a consumption of 0.25 litre per 1000 mile but consumption will vary according to driving style)
Looks like there will be a few frequent bonnet pulls!
J.