If it's not going to bring significant fuel consumption improvements it might at least increase top speed - I'd love to hit ~160-170 instead of my best - 150.
Tomorrow I'll hopefully start by making wheel ramps so that I can safely get under the car (original car jack got broken and I have only two 'thingies' to support the car). Then I'll be able to get some measurements done to create belly pan.
I'm looking for some information about Fiat Punto Economy Power - concept version with 1.9TD engine that had fuel consumption of just 3.6l/100km. It went through some serious mods like 20% of weight reduction, flat wheels, modified bumpers etc.
All the information I was able to find was a short article on polish Punto fansite with just one picture
Maybe you know something more about this one?
BTW - Stock Punto is not a aerodynamically bad car - Cx is 0.31 and frontal area is 1.99m^2.