Quote:
Originally Posted by Hauki
(Interestingly the Xsara non-picasso achieves 65.7 imperial extra urban, basically 5mpg more.)
Anyway, my target would be 4l/100 or 70 MPG IMP @ 60mph / 100kmh. Do you think that is do-able on the Picasso? Or should I compromise comfort for a wagon ang better MPG's.
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The Xsara and Xsara Picasso are two totally different cars, aerodynamically at least. The Picasso version has just soooo much more frontal area. Compare:
Xsara Break:

Xsara Picasso:

The Picasso is at least 10mm wider and 217mm taller, while both have a drag coefficient of 0.3 from what I've been able to find. The Picasso is almost 30% heavier (1388kg vs 1080kg).
With the milage you're doing, even a small difference in fuel consumption will quickly add up. I'd ditch the minivan and get a stationwagon. If you can fit your crap into the Xsara, then go with it. Also, the Xsara will probably allow better aeromodding.
If you are willing to invest a bit more, then I'd propose the car I have, a Peugeot 307sw (or 307 wagon, without the "SW", should be slightly cheaper). Its height is between the Xsara Break and Picasso, its 1.6HDi engine is more efficient (and lighter) than the 2.0HDi, it has already been tested with aeromods (see my thread and fuel log), and is very functional when packing. For example, I've hauled the following configurations (among others):
- 7 people,
- 3 people plus 4 bikes plus stuff,
- 4 people plus 3 bikes plus stuff,
- 5 people plus lots of stuff,
- 2 people plus even more stuff,
- 1 person and way more than half a ton of stuff,
- 4 people plus 210cm-long skis,
- 1-3 people plus Ikea boxes 220-240cm long.
The down side is that its weight is closer to the Picasso, and Cd is 0.33
