Game:

CART Precision Racing (1997)

Duration: 0:00

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7

This is much better than the previous single(1)-level MIP video.

Here's run-through of a bunch of tracks with the LOLA1995 carset (with the lowest detail level MIPs dropped, the most detailed 50% is still there)
00:00 ICR2 Intro
01:24 Surfers Paradise (unmodified tracks)
03:50 Denver '91
05:48 Indianapolis
07:34 Meadowlands (unmodified track)
09:23 Nashville (unmodified track)
11:27 Riverside and "Divide by zero" (Always restart Dosbox before a race and only race a single track)
12:31 Riverside
14:37 Riverside Replay

Denver, Indianapolis and Riverside have had the smalles 50% of their MIPS removed as has the LOLA1995 carset. For nearly all the custom tracks with custom carsets, a mip-reduced carset is required. For the heavier tracks, the tracks themselves need to be mip reduced. TREdit can shrink them down:

https://nirvtek.com/downloads/TREdit.20250321.001.7z
MD5: 4eb4d4083a9bcbfa4bb35f199c5a1d15

To use this with an unpacked DAT:
tredit PathToUnpackedDat -reduce -convert OutputFolder

The ICR2\Tracks\trackname\folder should have everything already there apart from the DAT. Copy and paste the contents of OutputFolder (just the MIPS really) to ICR2\Tracks\trackname overwriting any existing MIPs.

If the source track or carset is packed into a DAT file:
tredit path to dat file -unpack unpack directory

First zap the dat file in ICR2\TRACKS (leaving all other files in there), copy the unpacked files folder then do a reduction and paste reduced files over ICR2\Tracks\trackname folder.

In general, most custom tracks+custom carsets should be playable. Distant objects do suddenly pop into the frame. I'm not sure whether this is because of the missing mips or just the game's view distance/mip selection.

Here are the tracks and carsets used (These are already modded and don't need to be MIP reduced):
Cars2020: https://nirvtek.com/downloads/cars2020.HalfMip.RenditionReady.7z
MD5: d19fa0742fae92c68904e99bd4e6952b
LOLA1995: https://nirvtek.com/downloads/LOLA1995.HalfMip.RenditionReady.7z
MD5: 9219f4d3fda493008ff6886832f8ee66

Tracks (for these three, both the carset and the track need to shed a few mipmaps. Other tracks like Meadowlands and Nashville will work with just half-mipped carsets):
Denver: https://nirvtek.com/downloads/denver.HalfMip.RenditonReady.7z
MD5: ab20ac3af21ecdaabf038c3afb605e38
Indianpolis: https://nirvtek.com/downloads/Ims92.HalfMip.RenditionReady.7z
MD5: 6600e746e7b2f727bbce798d92dcd456
Riverside: https://nirvtek.com/downloads/riversid.HalfMip.RenditionReady.7z
MD5: 23de53c63fe034e1f6a7492e47ce1f86

You'll need a DOS32A bound version of ICR2 which you can get from here:
(128 MB version)
https://nirvtek.com/downloads/ICR2.128 MB Texture Buffer.7z[
MD5:0104b3967c0396af1b253d0b63553e2a