I have nothing against tractors; both Ferruccio Lamborghini and Ferdinand Porsche started there. By that logic, give Alfa a few years' time and they will be making veruca-shaped SUVs, lapsing into retrograde design on their worthwhile vehicles, and raking in the moola... assuming Serge doesn't attempt to merge them off with another company to create the Zastalfa Oxidizer GL.
Ribbing aside, the Alfa was very nice, save the drivetrain.
I will not have bad words spoken about the Duster, however! As embarassing as it is to admit, I really liked that car. Humility is lost on modern cars... Had there been the odd particle of sand, or even a seagull carcass, on Barcelona's beautifully-paved roads the Duster's faux-offroad prowess would have radiated through. Not since the Gauls and Goths told the Romans to "**** off" and then sacked Rome and the Dacians told the Romans to "**** off" and were then sacked and obliterated by Rome have the French and Roumanians been in such accord!
(As embarassing as it is to admit, I really liked that car; humility is lost on modern cars...)
The classic enthusiast's condundrum: Cheap, interesting, or useful: pick two. Obviously a motorcycle would fulfill any fuel economy and speed requirements, but they're short on practicality (especially if you're on the road for work) and you don't strike me as the Power-Ranger-riding-everywhere-at-987,000-rpm-on-his-RZRYZXRFXRZCRR-99RR-R99R9RRR9X type. They are also fairly fatiguing for long stretches at the communistical 180 metrics/hour that you folks are wont to do.
Even though I think it is ugly, I'm sure the Fiat Spider's turbo charger gives it a bit longer legs than the Miata. There are the usual host of hot hatches from Europe (and Ford) and the usual host of flat-brim rally specials from Japan (and Ford), but with the exception of the Fiesta RS and Renaultsport Megane, none of them really do much for me. Neither of those two strike me as being particularly long-legged. It seems the Germans are the only ones interested in making the businessman's express that it seems you want. Even then, Audi and Mercedes don't make much at that level that's dynamically interesting. Modern BMWs leave me a bit cold as well. Were it not for its size, the Mustang would be a good choice and I know you have a soft spot for the Challenger, but that's probably best left as a fantasy.
If you intend to keep the cars through at least one round of consumables and have an insurance company that is amenable to adjusting down your individual rates because the same mileage will be spread across two vehicles, you might almost be able to convince yourself of the financial feasibility of a two-car solution.
"Kimi, can you improve on your [race] finish?"
"No. My Finnish is fine; I am from Finland. Do you have any water?"