Like I say to everybody else concerning RHD cars, the handling is no different and it's a VIDEOGAME, not a real car.
We ALL sat in that "passenger seat" for years wondering what it would be like to drive from that side of the car, now we have the chance without needing any special licensing and without paying for expensive import cars.
Set the cameras right, pay attention to the road and the centered steering wheel, and let your imagination "be a kid" again.
And just an FYI, when RHD cars were converted to LHD in the past, people complained about the backwards textures, and also the realism issues of those cars never being released in real life with any LHD options.
Remember, just because the people who made TDU made everything LHD doesn't mean they did the right thing, there's a few cars in TDU that never should have been made LHD because they were never released in real life with LHD steering from their original companies.