Complex sentence: The two Tyrrells raced by Takagi and Rosset are curently owned by Dutchman Frits van Eerd, he races the cars in the EuroBOSS series.
Split into simpler sentences: The two Tyrrells raced by Takagi and Rosset are currently owned by Dutchman Frits van Eerd. He races the cars in the EuroBOSS series.