k I hav flipped thru d V6 section n much justice was done 2 it,Now wat say ye abt V8.
Fuel consumption
Engine capability
Maintenance
watever u fink u no say it here or kip shut n listen if u dnt,jst lik me.
So lets get d drum rolling

V8 engines tend do be larger in capacity therefore have a tendency to use up more fuel. They also produce more Torque/Energy/HP(or BHP) compared to a V6 of similar individual piston size.

Fuel consumption largely depends on the tuning of the car and the driving habits. jack-rabbiting starts doesn't give good gas mileage, same goes for a very slow acceleration

For me, the choice of engine depends on its primary use. For a 8 to 5 person, an I4 would do the job and a full size/family size V6 sedan would be nice for a family of 5 or less,or you could consider a compact or midsize SUV with a V6 putting into consideration family errands and trips during the festive periods.

The V8 engine is commonly seen in luxury sedans, full size SUVs, Pickups/Trucks and sports cars. MOST V8 are high performance cars and require high octane petrol (93+) therefore it is not a "struggling mans car". These days Luxury cars and sports cars are built with a lot of sensors and require a complete computer scan to detect any problem. i Think there is a lack of a competent V8 Mech and parts in Nigeria

A more detailed answer is to your questions

Fuel Consumption: City = V6 is lower, Highway = V6 is lower, but an Aerodynamic V8 would give you good gas mileage Drag is a major energy loss factor at high speeds
Engine Capability: Like i said more Torque/HP from the V8.
Maintenance : If its the same type of car, i guess the difference is minimal. E.G. FX35 and FX45/50, Toyota Land Cruiser V6 and V8. Unless a factory fault

For the Adrenaline rush, i would say go for a V8

Good job.
Not a struggling man's car,pt taken

more pls