Deducting Mileage for Same Vehicle on Different Schedule C's and What to Report as Placed In Service Date on Each

My husband and I share ownership of our multiple cars.  We are both self employed with multiple businesses and this year we used the same vehicle part time and tracked mileage separately for our businesses.  I have always driven and written off mileage associated with my Real Estate business since 2019 for our Honda Van.   On my Schedule C the vehicle information says placed in service as 2019.  My husband started working for a logisitics company as a self employed courier/delivery driver business in 2023 and used the Honda Van for a month before he bought a fuel efficient hybrid car and also used the Van during the winter months occasionally.  When entering the Honda Van on his Schedule C, do I put the Placed in Service Date as the date we started using it for any business which was 2019, or the date he started using it for the new courier service business which would be 2023 ?    Total mileage is reported the same in each Schedule C with the tracked mileage for each of our busineses reported separately.  For example 15,000 Total Miles reported driven on both Schedule C's, with 4,000 Business Miles on Real Estate Schedule C and 3,000 Business Miles on Courier Schedule C.  The Honda Van has always been reported and deducted on all Schedule C's in the past at the standard mileage rate.