I WAS DRIVING TO WORK ON THE WI 43 FREEWAY (SPEED APROX. 70 MPH) AT 2:00AM OF 09/28/2020. I SMELLED SOMETHING BURNING AND SAW SPARKS COMING FROM UNDER MY DASHBOARD. I PULLED OVER TO THE SIDE OF THE FREEWAY AND CALLED 911. TWO OZAUKEE COUNTY SHERIFFS AND 1 PORT WASHINGTON FIRE TRUCK RESPONDED (INCIDENT NUMBER 20-27928). AS YOU CAN SEE FROM THE ATTACHED PICTURES WHICH WERE TAKEN THE NEXT DAY AT THE TOWING YARD MY CAR'S DASH AND INTERIOR WAS TOTALLY MELTED BY AN ELECTRICAL FIRE THAT WAS SO HOT IT CRACKED THE WINDSHIELD. ALTHOUGH THE CAR HAS SOME AGE ON IT, THIS IS NOT SOMETHING THAT SHOULD EVER OCCUR WHILE DRIVING DOWN THE HIGHWAY. FORTUNATELY NO ONE WAS HURT. THE CAR HAD TO BE TOTALED AS IT WAS BEYOND REPAIR.