Yeah I have Mennonite ppl in my family and have never seen them use horse and buggy, they own and use cars; their tech restrictions are more severe than I would expect most are,accustomed to. The Amish in my former area tend to be very severe in their rejection of modernity but some do use cell bones for work when they are actually away from home.
The difference might be that our Mennonites are Old Order Mennonites. They behave more like Amish but will use modern things if necessary.