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:
BMW 7 Series (E32)
Table title:
Models
Table:
<table id='hittask' contenteditable='False'>
<tr> <th colspan=1 rowspan=1 > Model </th><th colspan=1 rowspan=1 > Engine </th><th colspan=1 rowspan=1 > Power </th><th colspan=1 rowspan=1 > Torque </th><th colspan=1 rowspan=1 > 0–100 km/h (0-62 mph) acceleration </th><th colspan=1 rowspan=1 > Top Speed </th><th colspan=1 rowspan=1 > Years </th></tr>
<tr> <th class="highlighted"  colspan=1 rowspan=1 > 730i </th><td class="highlighted"  colspan=1 rowspan=1 > M30 I6 </td><td colspan=1 rowspan=1 > 138 kW (185 hp; 188 PS) at 5,800 rpm* </td><td colspan=1 rowspan=1 > 260 N⋅m (192 lb⋅ft) at 4,000 rpm </td><td colspan=1 rowspan=1 > 10.6 (AT) 9.3 (MT) </td><td colspan=1 rowspan=1 > 222 km/h (138 mph) (AT) 222 km/h (138 mph) (MT) </td><td colspan=1 rowspan=1 > 1986–1992 </td></tr>
<tr> <th colspan=1 rowspan=1 > 730i V8 </th><td colspan=1 rowspan=1 > M60 V8 </td><td colspan=1 rowspan=1 > 160 kW (215 hp; 218 PS) at 5,800 rpm </td><td colspan=1 rowspan=1 > 290 N⋅m (214 lb⋅ft) at 4,500 rpm </td><td colspan=1 rowspan=1 > 9.3 (AT) 8.5 (MT) </td><td colspan=1 rowspan=1 > 230 km/h (143 mph) (AT) 233 km/h (145 mph) (MT) </td><td colspan=1 rowspan=1 > 1992–1994 </td></tr>
<tr> <th class="highlighted"  colspan=1 rowspan=1 > 735i </th><td class="highlighted"  colspan=1 rowspan=1 > M30 I6 </td><td colspan=1 rowspan=1 > 155 kW (208 hp; 211 PS) at 5,700 rpm </td><td colspan=1 rowspan=1 > 305 N⋅m (225 lb⋅ft) at 4,000 rpm </td><td colspan=1 rowspan=1 > 9.1 (AT) 8.3 (MT) </td><td colspan=1 rowspan=1 > 228 km/h (142 mph) (AT) 231 km/h (144 mph) (MT) </td><td colspan=1 rowspan=1 > 1986–1992 </td></tr>
<tr> <th colspan=1 rowspan=1 > 740i </th><td colspan=1 rowspan=1 > M60 V8 </td><td colspan=1 rowspan=1 > 210 kW (282 hp; 286 PS) at 5,800 rpm </td><td colspan=1 rowspan=1 > 400 N⋅m (295 lb⋅ft) at 4,500 rpm </td><td colspan=1 rowspan=1 > 7.4 (AT) </td><td colspan=1 rowspan=1 > 240 km/h (149 mph)** </td><td colspan=1 rowspan=1 > 1992–1994 </td></tr>
<tr> <th colspan=1 rowspan=1 > 750i </th><td colspan=1 rowspan=1 > M70 V12 </td><td colspan=1 rowspan=1 > 220 kW (295 hp; 299 PS) at 5,200 rpm </td><td colspan=1 rowspan=1 > 450 N⋅m (332 lb⋅ft) at 4,100 rpm </td><td colspan=1 rowspan=1 > 7.4 (AT) </td><td colspan=1 rowspan=1 > 250 km/h (155 mph)** </td><td colspan=1 rowspan=1 > 1987–1994 </td></tr>
</table>
Question:
What engine powered the models of the BMW 7 Series?
Answer:
The BMW 7 Series models which consisted of the 730i and 735i, were powered by the M30 straight-6 engine.