Donovan said:
jack the car so you don't flat spot your tires,
Do not "jack the car". Modern tires don't "flat spot" from sitting too long - especially not with an Elise sitting on them. What "flat spot" does appear, will "disappear" after a few miles of driving.
However, if you do "jack the car", you will leave the suspension at full droop, and that will damage the rubber bushings. Not a good thing to do. Outside of the ball joints, the suspension of a modern car does not "rotate" on any surfaces. The bushings of most all cars (unless it has heim joints) are rubber with an inner and outer metal sleeve. One of the sleeve is "clamped" to the chassis, and the other is "clamped" to the suspension. Any movement of the suspension joint is the flexing of the rubber in the joint between the two sleeves. Leaving the car with the suspension "drooped" for an extended period tends to "stretch" the rubber in the joint, and decrease it's life...
Even if it did "flat spot" the tires, which it doesn't, tires are much cheaper (easier anyway) to replace than suspension rebuilds... If you are really worried about it, roll the car slightly to a new position every week or two.
Tim Mullen