Please read the following table in HTML format from a webpage and then answer the question in detail according to the table. Each table cell is defined by a <td> and a </td> tag. Each table row starts with a <tr> and ends with a </tr> tag. 'rowspan=m' and 'colspan=n' represents a cell spaning over 'm' rows and 'n' columns.

Webpage title:
Worldwide Aeros Corp
Table title:
Fleet
Table:
<table id='hittask' contenteditable='False'>
<tr> <th colspan=1 rowspan=1 >  </th><th colspan=1 rowspan=1 > Dragon Dream </th><th colspan=1 rowspan=1 > ML 866 </th><th colspan=1 rowspan=1 > ML 868 </th><th colspan=1 rowspan=1 > ML 86X </th></tr>
<tr> <td colspan=1 rowspan=1 > Payload </td><td colspan=1 rowspan=1 > 0 tons </td><td colspan=1 rowspan=1 > 66 tons </td><td colspan=1 rowspan=1 > 250 tons </td><td class="highlighted"  colspan=1 rowspan=1 > 500 tons </td></tr>
<tr> <td colspan=1 rowspan=1 > Length </td><td colspan=1 rowspan=1 > 266 ft </td><td colspan=1 rowspan=1 > 555 ft </td><td colspan=1 rowspan=1 > 770 ft </td><td class="highlighted"  colspan=1 rowspan=1 > 920 ft </td></tr>
<tr> <td colspan=1 rowspan=1 > Wingspan </td><td colspan=1 rowspan=1 > 96 ft </td><td colspan=1 rowspan=1 > 177 ft </td><td colspan=1 rowspan=1 > 296 ft </td><td class="highlighted"  colspan=1 rowspan=1 > 355 ft </td></tr>
<tr> <td colspan=1 rowspan=1 > Height </td><td colspan=1 rowspan=1 > 51 ft </td><td colspan=1 rowspan=1 > 120 ft </td><td colspan=1 rowspan=1 > 183 ft </td><td class="highlighted"  colspan=1 rowspan=1 > 215 ft </td></tr>
<tr> <td colspan=1 rowspan=1 > Max speed </td><td colspan=1 rowspan=1 > 60 knots </td><td colspan=1 rowspan=1 > 120 knots </td><td colspan=1 rowspan=1 > 120 knots </td><td colspan=1 rowspan=1 > 120 knots </td></tr>
<tr> <td colspan=1 rowspan=1 > Cruise speed </td><td colspan=1 rowspan=1 > 40 knots </td><td colspan=1 rowspan=1 > 100 knots </td><td colspan=1 rowspan=1 > 100 knots </td><td colspan=1 rowspan=1 > 100 knots </td></tr>
<tr> <td colspan=1 rowspan=1 > Range </td><td colspan=1 rowspan=1 > n/a </td><td colspan=1 rowspan=1 > 3,100 nm </td><td colspan=1 rowspan=1 > 5,100 nm </td><td colspan=1 rowspan=1 > 5,100 nm </td></tr>
<tr> <td colspan=1 rowspan=1 > Altitude ceiling </td><td colspan=1 rowspan=1 > 9,800 ft </td><td colspan=1 rowspan=1 > 12,000 ft </td><td colspan=1 rowspan=1 > 12,000 ft </td><td colspan=1 rowspan=1 > 12,000 ft </td></tr>
<tr> <td colspan=1 rowspan=1 > Cargo dimensions </td><td colspan=1 rowspan=1 > n/a </td><td colspan=1 rowspan=1 > 220 ft x 40 x 30 </td><td colspan=1 rowspan=1 > 380 ft x 61 x 45 </td><td colspan=1 rowspan=1 > 455 ft x 74 x 54 </td></tr>
</table>
Question:
In what categories was the ML 86X an improvement from the ML 868?
Answer:
ML86X was larger than the ML 868 and had a length of 920 feet, a height of 215 feet, and a width of 355 feet, it increased its carrying capacity to 500 tons, and it had larger cargo dimensions of 455 x 74 x 54 ft.