I take it no one is familiar with that car.
The car is as Nissan designed it for Group A rallying. It's a 4wd car. The bonnet scoop feeds a top mounted intercooler, so it was needed, but I'm not sure how much benefit the side vents are. They may let a little air out of the bonnet, I don't know for certain. In fact from the factory they have blanks fitted which you can remove (I did). I don't know how much the rear spoiler works, if I remember, I'm going to try and remove it next time I go to the strip to find out.
As standard the car will hit 60mph in about 5.1s and do the 1/4 in the high 13s. The car will now hit 60mph in 3.7s, do the 1/4 in 12.4 at 110mph and it can go round corners pretty fast
I found the Autospeed website a few years ago, it's been in my favourites ever since. There's some good stuffon there.
The mods I done to the car since I bought it are, lightweight bonnet (now with a larger central vent, rather than scoop as I replaced the top mount intercooler with a front mount) lightweight wheels and smaller diammeter tyres. The after market exhaust saved 13kg, lightweight flywheel saved 5kg, lightweight engine pulleys, fibreglass hatchback, lexan windows, removing complete aircon saved 23kg, DTM style mirrors to replace the standard slabs, a rear diffuser waiting to be fitted. Carbon fibre drivers seat saved 10kg.
I have kevlar/fibreglass doors to go on, they'll save about 12kg each.
I also turned the boost up abit to get more power. 290bhp now against 215bhp standard.
I've lost a good 80kg for daily use and about 120kg when I remove the interior to go drag racing.
What I'm trying to achieve is to make the car go as fast as I can without spending too much money on the engine. To me that means reducing weight and reducing drag if possible.
The last day out I had averaged about 29mpg whilst travelling at the motorway speed limit of 70mph
It was certainly my best mpg yet returning a good 40miles more before I started worrying about filling up.