When Ford owned Jaguar seem to remember one of the Jags were based on the Mondeo, but the big problem with the Jags was fuel economy and shortly after splitting from Ford Jaguar developed some new engines, and as often the case they went from one of the worst to one of the best for fuel economy.
Each manufacturer seems to do the same, they get known as the worst for some thing, like in the 60's Vauxhall for rust, and then they either get their act into gear and become one of the best, or they go bust.
But then gradually the others catch them up, 20 years ago Kia did a no extra cost option for diesel, and were one for the best cars for economy, but don't seem to have improved so have been over taken.
I do think of my old cars, and yes I thought the Morris Minor was one of the best cars made, but back then 60 MPH was considered fast, and they did not need to carry around the weight of side impact panel's etc. So the Reliant 3 wheeler and the Citroen 2CV where showing 60 MPG and the Morris Minor was doing 40 MPG but they carried no weight, and had a top speed of around 60 MPH.
What I have never worked out was motor bikes, OK I had a Honda moped P50 which was claimed to do 254 MPG at 16 MPH on a level paved road, so there have been good ones, and the Lambretta scooters claimed at one point all models did over 100 MPG, even the Bonneville did 60 MPH, but today it seems they all are rather poor, when you consider the weight we should be looking at over 100 MPG for all motor cycles.
But it seems the Mini is still being made, really? It is nothing like the original mini, same with Nissan Micra, the car today is nothing like the original, Ford did it a lot the names prefect and anglia seemed to cover a whole range of cars, if some one says to me I have got a C5 I think wow would love to have one of them, then I find not a Sinclair C5 it's a Citroen C5 and I feel a bit of a let down.
So I think it is good to drop the name and come up with a new one, even if similar we all know the Jaguar E type and XE type are very different cars, even if similar name it's not same name. With C5 already used with was wrong with Cit5? Well sounds like a cleaning fluid but.