most un likely can be life threatening can be fatal if the pattern does not match the car performance will differ every tire id design for different use some for comfort some for sports and even after that some are for dry handling and some for wet
please be very care full while choosing tires be very realistic how you drive the car what u r looking for in the tire the sport tires can be very uncomfortable but will give you ultimate grip for handling comfort tire will not give u ultimate grip though will handle tires up to a certain speed
please remember one thing tires are the only thing keeping your car on road a power full vehicle is nothing without control !!!!!~