At speed, the 4,222-pound S90 is easy to corral thanks to its superb brakes. However, the steering isn’t all that communicative and is a bit too heavy. That was a bit of a surprise, as was the relatively small steering wheel (that was a good surprise). Throwing the S90 into dynamic mode makes the wheel heavier and the throttle and shift points more aggressive. The eight-speed automatic transmission can be manually shifted but paddles are not on offer. The suspension is tuned more for comfort than performance, with a $1,200 air suspension system available (ours wasn’t equipped as such). Fuel economy is rated at 22/31/25 mpg, although we only managed a disappointing 22 mpg in combined highway and city driving.