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Kim Kardashian<\/strong><\/a> and <\/span>Lewis Hamilton<\/strong><\/a> might have the formula for a racing romance.<\/span><\/p>\n Months after sparking dating rumors, <\/span>the <\/span>Kardashians<\/span><\/em><\/a> star and the seven-time Formula 1 champion <\/span>seemingly went Instagram official<\/span>.<\/span><\/p>\n In an Instagram video<\/a> shared by Lewis, 41, April 6, he raced through the streets of Tokyo in a red Ferrari car. As he drifted the vehicle, Kim, 45, was revealed to be sitting in the front passenger seat.<\/span><\/p>\n And when the SKIMS founder was asked what she thought of the experience, she <\/span>replied with a smile<\/span>, \u201cThat\u2019s insane.\u201d<\/span><\/p>\n Indeed, Kim joined Lewis in Japan as he prepared for the Japanese Grand Prix last month, <\/span>shopping around Tokyo<\/span><\/a> with <\/span>her<\/span> sister <\/span>Khloe Kardashian<\/strong>. Kim\u2019s kids <\/span>North<\/strong>, 12, <\/span>Saint<\/strong>, 10, <\/span>Chicago<\/strong>, 8, and <\/span>Psalm<\/strong>, 6\u2014 who she shares with ex-husband <\/span>Kanye West<\/strong><\/a>\u2014were also along for the trip, as Kim posted about on <\/span>Instagram<\/span><\/a> at the time.<\/span><\/p>\n Kim and Lewis first sparked dating speculation in January, when they were spotted at the same New Year\u2019s Eve party in Aspen, Colo. Rumors were further fueled the following month, when the pair were spotted hopping on a private flight from U.K. to Paris together. <\/span><\/p>\n<\/div>\n