Actually for a car that is said to go 0-60 in 7 seconds 15 and a half is pretty good for a 1/4 mile time. Also 140mph is not the fastest an SVX (without a governor of course) can go, someone in Germany drove the SVX on the Autobahn to a speed of 175mph, since the speedometers that show kmph can be translated to a higher mph than what is shown as the max speed for the USDM ones. The SVX was never designed for 0-60 to acceleration in mind, hence the wide gear ratio, where the car really shines is 40+, handling or just cruising around. That doesn't stop some people from modding it though. Someone actually ran 13.2 at a trap speed of 106mph (must have been some wheel spin) with an SVX with a couple shots of no2. Not to mention people have gotten into the 14s with a manual swap. So even though the SVX was never designed as a sports car in a true sense you can at least mod it in order to get it closer.