in 2018, wonderland road between highway 401 and sunningdale road was also designated as highway 4 through the city, completed as part of a re-routing of highway 4 through city, bypassing the city's downtown core, and linking mto - controlled portions of highway 4 both north and south of the city. therefore, highway 4 now follows richmond street south to sunningdale road, sunningdale west to wonderland road, wonderland south to highway 401, a 401 concurrency west to colonel talbot road, then colonel talbot south to the city limits.