488 challange vs 488 challange evo

Can anyone let me know the difference from the series 1 challenge 488 to the series 2 488 challange evo. It seems the price difference isn't that big. I know there was some changes to the eco and possibly titanium connecting rods? I'm looking at 2 different cars the series one was a track day toy its a 2017 has just 4000 miles and is around $150k with no spares. Its in immaculate shape with very little wear but really no history of maintenance. the Evo is a 2020 ex racer just under 8000 miles and has a load of spares and is about $190k. The evo seemed to be well maintained by a pro crew. The price difference isn't huge. I'm just trying to determine which car will be the better choice. We are just going to use it as a track day toy in my collection. any thoughts?