Gasohol 95

Hello all, this morning I just filled up my car with the last 52 litres of benzine 95 at the local Bangchak. Apparently, from now on benzine 95 will be discontinued and all service stations will be pumping gasohol 95 instead.

I'm not too worried about filling up my everyday car with gasohol, as its a relatively recent model, but does anybody know if there would be any adverse effects on a 1997 Jaguar XK8 or a 1999 Maserati 3200 GT? Also, my dad has a Morgan Plus 8 with a Rover V8 engine (not sure of the model year, but its at least 15 years old).

Thanks in advance for any advice!