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:
Retired MTA Regional Bus Operations bus fleet
Table title:
Buses ordered before 1959
Table:
<table id='hittask' contenteditable='False'>
<tr> <th colspan=1 rowspan=1 > Year </th><th colspan=1 rowspan=1 > Builder and model name </th><th colspan=1 rowspan=1 > Length and Width </th><th colspan=1 rowspan=1 > Numbers (preserved numbers) </th><th colspan=1 rowspan=1 > Picture </th><th colspan=1 rowspan=1 > Notes </th></tr>
<tr> <td colspan=1 rowspan=1 > 1946 </td><td colspan=1 rowspan=3 > General Motors TDH-4507 </td><td colspan=1 rowspan=3 > 35 ft (10.67 m) • 96 in (2.44 m) </td><td colspan=1 rowspan=1 > 1836–1845, 2260–2349 </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=3 > Former operators: 1000-series & 2700-series: New York City Omnibus 2260-2349: Fifth Avenue Coach and Surface Transportation, Inc. 2000-2261: NYC Board of Transportation </td></tr>
<tr> <td colspan=1 rowspan=1 > 1947 </td><td colspan=1 rowspan=1 > 1846–1886 </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 1948 </td><td colspan=1 rowspan=1 > 1887–2129, 2200–2259, 2700–2736 </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 1948 </td><td colspan=1 rowspan=1 > General Motors TDH-4510 </td><td class="highlighted"  colspan=1 rowspan=1 > 35 ft (10.67 m) • 102 in (2.59 m) </td><td colspan=1 rowspan=1 > 4400-4499 </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > Purchased by NYC Board of Transportation from orders cancelled by other cities. Last production transit buses ordered for transportation in New York City shorter than 40 feet. </td></tr>
<tr> <td colspan=1 rowspan=1 > 1948 </td><td colspan=1 rowspan=1 > General Motors TDH-5101 </td><td class="highlighted"  colspan=1 rowspan=12 > 40 ft (12.19 m) • 96 in (2.44 m) </td><td colspan=1 rowspan=1 > 4500-4899 (4789) </td><td colspan=1 rowspan=1 > - </td><td colspan=1 rowspan=1 > First 40 ft (12.19 m) transit buses manufactured by General Motors, and first 40 ft (12.19 m) transit buses in New York City. </td></tr>
<tr> <td colspan=1 rowspan=1 > 1949 </td><td colspan=1 rowspan=1 > General Motors TDH-5102 </td><td colspan=1 rowspan=1 > 2501 </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=3 > Purchased by Fifth Avenue Coach and Surface Transportation Inc. 2501 was a demonstrator unit. </td></tr>
<tr> <td colspan=1 rowspan=1 > 1952 </td><td colspan=1 rowspan=2 > General Motors TDH-5104 </td><td colspan=1 rowspan=1 > 2502–2551 </td><td colspan=1 rowspan=2 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 1953 </td><td colspan=1 rowspan=1 > 2552–2561 </td></tr>
<tr> <td colspan=1 rowspan=1 > 1954 </td><td colspan=1 rowspan=5 > General Motors TDH-5106 </td><td colspan=1 rowspan=1 > 2562–2591 </td><td colspan=1 rowspan=5 > - </td><td colspan=1 rowspan=5 > 2000-series & 3100 purchased by Fifth Avenue Coach and Surface Transportation, Inc. 3100 was one of two air-conditioned demo buses built in and purchased in 1956 (the other was a TDH-5105 that eventually went to New Orleans). </td></tr>
<tr> <td colspan=1 rowspan=1 > 1956 </td><td colspan=1 rowspan=1 > 3100 (preserved) </td></tr>
<tr> <td colspan=1 rowspan=1 > 1957 </td><td colspan=1 rowspan=1 > 7000-7208 (7144) </td></tr>
<tr> <td colspan=1 rowspan=1 > 1958 </td><td colspan=1 rowspan=1 > 2605–2644, 9000-9120 (9098) </td></tr>
<tr> <td colspan=1 rowspan=1 > 1959 </td><td colspan=1 rowspan=1 > 2645–2694 </td></tr>
<tr> <td colspan=1 rowspan=1 > 1954 </td><td colspan=1 rowspan=3 > Mack C-49-DT </td><td colspan=1 rowspan=1 > 2990–2999 </td><td colspan=1 rowspan=3 > - </td><td colspan=1 rowspan=3 > 2962-3009 purchased by Fifth Avenue Coach and Surface Transportation, Inc. </td></tr>
<tr> <td colspan=1 rowspan=1 > 1956 </td><td colspan=1 rowspan=1 > 2962–2989, 6000-6317 (6259) </td></tr>
<tr> <td colspan=1 rowspan=1 > 1958 </td><td colspan=1 rowspan=1 > 3000-3009 </td></tr>
</table>
Question:
How long were retired MTA buses and what kind of transmission engine did they have?
Answer:
Retired MTA Regional buses were about 40 ft (12.19 m) long and 102 in (2.59 m) wide, and were equipped with GM 6V71 Allison hydraulic transmission engine.