This looks impressive : http://tramway.nice.fr/carte-interactive/
Sadly not earlier than 2019 (a part end 2018). I think I'll use P+R when ready.
As far as I know there are only plans to extend the tram up to Cagnes, but only in the distant future.
Vence once had a train station...Edited: 27 September 2017, 16:01
No rails any more but you can still easily trace the old railway line. You can spot dozens of viaducts, tunnels, tracks turned into roads. The road in direction Saint-Jeannet goes over the old railway viaduct. Find some information here:
Some viaducts (like the one over the Malvan, Vence - St. Paul) were blown up in the last days of the war. They blamed the Germans but in fact it mostly were French locals who preferred to have a road instead of a railway.
Thanks for this tplus.
More here for rail buffs ..
P.S. glad to hear the Germans didn't cause any trouble in the area. I hear Nice was occupied by the Italians for some time in WW2 ..Nothing much happened, but a lot of good opera singing.