As you, I also feel some differences with the car, depending the weather temperature with no rain.
Itís not just how it handles (with same tyres) but it sounds a bit different and you have a different feeling when accelerating.
My opinion is that, with not to cold temperatures, like 12/15 degrees (centigrade) you get the best performance. As the temperature rises, the performance degrades a bit (itís not a big move but you might feel it) and this, always with your car properly warmed of course.
The fresh air that enters the engine itís very important. Make this experience: in a sunny day go out and drive hard very early in the morning. Do some kilometres. In the afternoon, do the same way. You might feel that difference.
Last Saturday, Iíve made one way and back in a motorway. Going out it was warm, with sun. When I got back, it was fresh, with daylight but no sun, and slightly damp too. He gave me 210km/h and rising. The road was extremely plan.
Iíve done that experience, including change the morning with the evening.
(2011) Alfa Romeo Giulietta 1.6JTDm, Pack Sport 17", Pack Comfort
(2009) Alfa Romeo 159 1.9JTDm 16V QV, 170hp+360nm, Bilstein B4+TI springs, ConnectNav G2, Autodelta Air filter, Brembo Disks, Satin Mirror Caps
(2002/2009) Alfa Romeo 147, 1.6TS QV, Autodelta Remap, Autodelta Air filter, Eibach Pro System Kit
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