Greetings from central England

[Pandaf]

For some inspiration check out this Aygo...
Details: Igor - 2007 Toyota Aygo Fuel Economy - EcoModder.com

[Chopper]

Most interesting. Under the bodywork the Aygo is nigh on identical to my 107, some food for thought there.

I'm also preparing for a grille block. I've a permanent partial one planned leaving a gap for radiator airflow, and a removable one to block the rad for cold weather running.

I'm also planning some work on the underside filling the gap between the bottom of the front bumper and the engine, breaking up the airflow forward of the rear wheels, and some underside modelling to stop the rear bumper being a giant air brake. The rear bumper is very bad and I'm surprised the manufacturers aero modelling didn't highlight that during development.

Then a vacuum gauge of some kind of OBD device so my iPhone can shown manifold vacuum.

No kamm tails or wholesale bodywork mods because its only 2 years old, but certainly any small incremental improvements will get looked at.

A block heater would be nice but can wait because they're expensive. Perhaps one of those devices to cut the alternator out when accelerating, if I can find one.

Where do you guys stand on engine air intake - cold or warm?

[Chopper]

Vacuum gauge ordered.

[Pandaf]

Originally Posted by Chopper

Most interesting. Under the bodywork the Aygo is nigh on identical to my 107, some food for thought there.

Yep, and not to forget the Citroen C1.

Originally Posted by Chopper

The rear bumper is very bad and I'm surprised the manufacturers aero modelling didn't highlight that during development.

Same issue with the Panda, rear bumper shaped like a parachute
I put a sheet of polypropilene aka "coroplast" to guide some of the air flow and reduce the drag. Look for "coroplast" on this site and you'll find a lot of info.
I think rear wheel arch covers would also be very helpful for both our cars, but like yours my car is still relatively new. So no concrete plans there..

I like this model very much, once rented an Aygo and travelled 700 km with it throughout Romania. Bad roads, much city driving, still managed 22 km per litre. Also quite comfortable and the engine (from Daihatsu I believe) is powerful enough. It has 14 horses more than mine

[Chopper]

Yes, the engine is Daihatsu in origin. 68 mighty BHP diesnt sound a lot, but is as much as the Charade Turbo produced only 25 years ago.

The 107 doesn't even have rear arch liners so the air flows past the wheel and into the giant air brake that is the rear bumper. Some definite work to be done there.

[Chopper]

Gauge fitted to the dash. I spent an age moulding black acoustic carpet round the pod. It looks sweet and won't throw unwanted reflections on the screen at night, and with barely 5 hours of daylight at the moment that's a good thing.

Connect it all up just as soon as the temperature outside rises a bit. Currently hovering around -8 to -10C and not been above freezing for days.